update arborist, dedupe pacote/make-fetch-happen

author: isaacs <i@izs.me> 2020-05-05 02:10:27 +0300
committer: isaacs <i@izs.me> 2020-05-08 04:19:16 +0300
commit: 873665e2c7f400c5de1962135f2510acc304b599 (patch)
tree: d3d6aa1f9dff7e79cce24be038c651dca8d03bd2 /node_modules/agentkeepalive
parent: e1943aca67223a657557705ecb192bdabb471a47 (diff)
19 files changed, 3780 insertions, 0 deletions
diff --git a/node_modules/agentkeepalive/History.md b/node_modules/agentkeepalive/History.md
new file mode 100644
index 000000000..9ea9986e9
--- /dev/null
+++ b/node_modules/agentkeepalive/History.md
@@ -0,0 +1,221 @@
+
+4.1.2 / 2020-04-25
+==================
+
+**fixes**
+  * [[`de66b02`](http://github.com/node-modules/agentkeepalive/commit/de66b0206d064a97129c2c31bcdabd4d64557b91)] - fix: detect http request timeout handler (#88) (fengmk2 <<fengmk2@gmail.com>>)
+
+4.1.1 / 2020-04-25
+==================
+
+**fixes**
+  * [[`bbd20c0`](http://github.com/node-modules/agentkeepalive/commit/bbd20c03b8cf7dfb00b3aad1ada26d4ab90d2d6e)] - fix: definition error (#87) (吖猩 <<whxaxes@qq.com>>)
+
+**others**
+  * [[`3b01699`](http://github.com/node-modules/agentkeepalive/commit/3b01699b8e90022d5f56898dd709e4fe7ee7cdaa)] - test: run test on node 12 (#84) (Igor Savin <<iselwin@gmail.com>>)
+
+4.1.0 / 2019-10-12
+==================
+
+**features**
+  * [[`fe33b80`](http://github.com/node-modules/agentkeepalive/commit/fe33b800acc09109388bfe65107550952b6fc7b0)] - feat: Add `reusedSocket` property on client request (#82) (Weijia Wang <<starkwang@126.com>>)
+
+**others**
+  * [[`77ba744`](http://github.com/node-modules/agentkeepalive/commit/77ba744667bb6b9e5986a53e5222f62094db12b9)] - docs: fix grammar in readme (#81) (Herrington Darkholme <<2883231+HerringtonDarkholme@users.noreply.github.com>>)
+
+4.0.2 / 2019-02-19
+==================
+
+**fixes**
+  * [[`56d4a9b`](http://github.com/node-modules/agentkeepalive/commit/56d4a9b2a4499ea28943ddb590358d7831a02cb1)] - fix: HttpAgent export = internal (#74) (Andrew Leedham <<AndrewLeedham@outlook.com>>)
+
+4.0.1 / 2019-02-19
+==================
+
+**fixes**
+  * [[`bad1ac0`](http://github.com/node-modules/agentkeepalive/commit/bad1ac0e710fbc486717e14e68c59266d35df6a8)] - fix: HttpsAgent Type Definition (#71) (#72) (Andrew Leedham <<AndrewLeedham@outlook.com>>)
+  * [[`f48a4a7`](http://github.com/node-modules/agentkeepalive/commit/f48a4a701ea6fbe43781c91e1c0aaad6e328ac7f)] - fix: export interface (#70) (Vinay <<vinaybedre@gmail.com>>)
+
+**others**
+  * [[`9124343`](http://github.com/node-modules/agentkeepalive/commit/91243437cfdd324cb97f39dee76746d5e5f4cd72)] - chore: add agent.options.keepAlive instead agent.keepAlive (fengmk2 <<fengmk2@gmail.com>>)
+  * [[`d177d40`](http://github.com/node-modules/agentkeepalive/commit/d177d40422fe7296990b4e270cf498e3f33c18fa)] - test: add request timeout bigger than agent timeout cases (fengmk2 <<fengmk2@gmail.com>>)
+
+4.0.0 / 2018-10-23
+==================
+
+**features**
+  * [[`5c9f3bb`](http://github.com/node-modules/agentkeepalive/commit/5c9f3bbd60555744edcf777105b148982a1a42b6)] - feat: impl the new Agent extend http.Agent (fengmk2 <<fengmk2@gmail.com>>)
+
+**others**
+  * [[`498c8f1`](http://github.com/node-modules/agentkeepalive/commit/498c8f13cf76600d3dd6e1c91cdf2d8292355dff)] - chore: move LICENSE from readme to file (fengmk2 <<fengmk2@gmail.com>>)
+  * [[`4f39894`](http://github.com/node-modules/agentkeepalive/commit/4f398942ba2f90cf4501239e56ac4e6344931a01)] - bugfix: support agent.options.timeout on https agent (fengmk2 <<fengmk2@gmail.com>>)
+
+3.5.2 / 2018-10-19
+==================
+
+**fixes**
+  * [[`5751fc1`](http://github.com/node-modules/agentkeepalive/commit/5751fc1180ed6544602c681ffbd08ca66a0cb12c)] - fix: sockLen being miscalculated when removing sockets (#60) (Ehden Sinai <<cixel@users.noreply.github.com>>)
+
+3.5.1 / 2018-07-31
+==================
+
+**fixes**
+  * [[`495f1ab`](http://github.com/node-modules/agentkeepalive/commit/495f1ab625d43945d72f68096b97db723d4f0657)] - fix: add the lost npm files (#66) (Henry Zhuang <<zhuanghengfei@gmail.com>>)
+
+3.5.0 / 2018-07-31
+==================
+
+**features**
+  * [[`16f5aea`](http://github.com/node-modules/agentkeepalive/commit/16f5aeadfda57f1c602652f1472a63cc83cd05bf)] - feat: add typing define. (#65) (Henry Zhuang <<zhuanghengfei@gmail.com>>)
+
+**others**
+  * [[`28fa062`](http://github.com/node-modules/agentkeepalive/commit/28fa06246fb5103f88ebeeb8563757a9078b8157)] - docs: add "per host" to description of maxFreeSockets (tony-gutierrez <<tony.gutierrez@bluefletch.com>>)
+  * [[`7df2577`](http://github.com/node-modules/agentkeepalive/commit/7df25774f00a1031ca4daad2878a17e0539072a2)] - test: run test on node 10 (#63) (fengmk2 <<fengmk2@gmail.com>>)
+
+3.4.1 / 2018-03-08
+==================
+
+**fixes**
+  * [[`4d3a3b1`](http://github.com/node-modules/agentkeepalive/commit/4d3a3b1f7b16595febbbd39eeed72b2663549014)] - fix: Handle ipv6 addresses in host-header correctly with TLS (#53) (Mattias Holmlund <<u376@m1.holmlund.se>>)
+
+**others**
+  * [[`55a7a5c`](http://github.com/node-modules/agentkeepalive/commit/55a7a5cd33e97f9a8370083dcb041c5552f10ac9)] - test: stop timer after test end (fengmk2 <<fengmk2@gmail.com>>)
+
+3.4.0 / 2018-02-27
+==================
+
+**features**
+  * [[`bc7cadb`](http://github.com/node-modules/agentkeepalive/commit/bc7cadb30ecd2071e2b341ac53ae1a2b8155c43d)] - feat: use socket custom freeSocketKeepAliveTimeout first (#59) (fengmk2 <<fengmk2@gmail.com>>)
+
+**others**
+  * [[`138eda8`](http://github.com/node-modules/agentkeepalive/commit/138eda81e10b632aaa87bea0cb66d8667124c4e8)] - doc: fix `keepAliveMsecs` params description (#55) (Hongcai Deng <<admin@dhchouse.com>>)
+
+3.3.0 / 2017-06-20
+==================
+
+  * feat: add statusChanged getter (#51)
+  * chore: format License
+
+3.2.0 / 2017-06-10
+==================
+
+  * feat: add expiring active sockets
+  * test: add node 8 (#49)
+
+3.1.0 / 2017-02-20
+==================
+
+  * feat: timeout support humanize ms (#48)
+
+3.0.0 / 2016-12-20
+==================
+
+  * fix: emit agent socket close event
+  * test: add remove excess calls to removeSocket
+  * test: use egg-ci
+  * test: refactor test with eslint rules
+  * feat: merge _http_agent.js from 7.2.1
+
+2.2.0 / 2016-06-26
+==================
+
+  * feat: Add browser shim (noop) for isomorphic use. (#39)
+  * chore: add security check badge
+
+2.1.1 / 2016-04-06
+==================
+
+  * https: fix ssl socket leak when keepalive is used
+  * chore: remove circle ci image
+
+2.1.0 / 2016-04-02
+==================
+
+  * fix: opened sockets number overflow maxSockets
+
+2.0.5 / 2016-03-16
+==================
+
+  * fix: pick _evictSession to httpsAgent
+
+2.0.4 / 2016-03-13
+==================
+
+  * test: add Circle ci
+  * test: add appveyor ci build
+  * refactor: make sure only one error listener
+  * chore: use codecov
+  * fix: handle idle socket error
+  * test: run on more node versions
+
+2.0.3 / 2015-08-03
+==================
+
+ * fix: add default error handler to avoid Unhandled error event throw
+
+2.0.2 / 2015-04-25
+==================
+
+ * fix: remove socket from freeSockets on 'timeout' (@pmalouin)
+
+2.0.1 / 2015-04-19
+==================
+
+ * fix: add timeoutSocketCount to getCurrentStatus()
+ * feat(getCurrentStatus): add getCurrentStatus
+
+2.0.0 / 2015-04-01
+==================
+
+ * fix: socket.destroyed always be undefined on 0.10.x
+ * Make it compatible with node v0.10.x (@lattmann)
+
+1.2.1 / 2015-03-23
+==================
+
+ * patch from iojs: don't overwrite servername option
+ * patch commits from joyent/node
+ * add max sockets test case
+ * add nagle algorithm delayed link
+
+1.2.0 / 2014-09-02
+==================
+
+ * allow set keepAliveTimeout = 0
+ * support timeout on working socket. fixed #6
+
+1.1.0 / 2014-08-28
+==================
+
+ * add some socket counter for deep monitor
+
+1.0.0 / 2014-08-13
+==================
+
+ * update _http_agent, only support 0.11+, only support node 0.11.0+
+
+0.2.2 / 2013-11-19 
+==================
+
+  * support node 0.8 and node 0.10
+
+0.2.1 / 2013-11-08 
+==================
+
+  * fix socket does not timeout bug, it will hang on life, must use 0.2.x on node 0.11
+
+0.2.0 / 2013-11-06 
+==================
+
+  * use keepalive agent on node 0.11+ impl
+
+0.1.5 / 2013-06-24 
+==================
+
+  * support coveralls
+  * add node 0.10 test
+  * add 0.8.22 original https.js
+  * add original http.js module to diff
+  * update jscover
+  * mv pem to fixtures
+  * add https agent usage
diff --git a/node_modules/agentkeepalive/LICENSE b/node_modules/agentkeepalive/LICENSE
new file mode 100644
index 000000000..941258ca7
--- /dev/null
+++ b/node_modules/agentkeepalive/LICENSE
@@ -0,0 +1,23 @@
+The MIT License
+
+Copyright(c) node-modules and other contributors.
+Copyright(c) 2012 - 2015 fengmk2 <fengmk2@gmail.com>
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+'Software'), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/node_modules/agentkeepalive/README.md b/node_modules/agentkeepalive/README.md
new file mode 100644
index 000000000..70e57bbf6
--- /dev/null
+++ b/node_modules/agentkeepalive/README.md
@@ -0,0 +1,241 @@
+# agentkeepalive
+
+[![NPM version][npm-image]][npm-url]
+[![Known Vulnerabilities][snyk-image]][snyk-url]
+[![npm download][download-image]][download-url]
+
+[npm-image]: https://img.shields.io/npm/v/agentkeepalive.svg?style=flat
+[npm-url]: https://npmjs.org/package/agentkeepalive
+[snyk-image]: https://snyk.io/test/npm/agentkeepalive/badge.svg?style=flat-square
+[snyk-url]: https://snyk.io/test/npm/agentkeepalive
+[download-image]: https://img.shields.io/npm/dm/agentkeepalive.svg?style=flat-square
+[download-url]: https://npmjs.org/package/agentkeepalive
+
+The enhancement features `keep alive` `http.Agent`. Support `http` and `https`.
+
+## What's different from original `http.Agent`?
+
+- `keepAlive=true` by default
+- Disable Nagle's algorithm: `socket.setNoDelay(true)`
+- Add free socket timeout: avoid long time inactivity socket leak in the free-sockets queue.
+- Add active socket timeout: avoid long time inactivity socket leak in the active-sockets queue.
+- TTL for active socket.
+
+## Node.js version required
+
+Support Node.js >= `8.0.0`
+
+## Install
+
+```bash
+$ npm install agentkeepalive --save
+```
+
+## new Agent([options])
+
+* `options` {Object} Set of configurable options to set on the agent.
+  Can have the following fields:
+  * `keepAlive` {Boolean} Keep sockets around in a pool to be used by
+    other requests in the future. Default = `true`.
+  * `keepAliveMsecs` {Number} When using the keepAlive option, specifies the initial delay
+    for TCP Keep-Alive packets. Ignored when the keepAlive option is false or undefined. Defaults to 1000.
+    Default = `1000`.  Only relevant if `keepAlive` is set to `true`.
+  * `freeSocketTimeout`: {Number} Sets the free socket to timeout
+    after `freeSocketTimeout` milliseconds of inactivity on the free socket.
+    Default is `15000`.
+    Only relevant if `keepAlive` is set to `true`.
+  * `timeout`: {Number} Sets the working socket to timeout
+    after `timeout` milliseconds of inactivity on the working socket.
+    Default is `freeSocketTimeout * 2`.
+  * `maxSockets` {Number} Maximum number of sockets to allow per
+    host. Default = `Infinity`.
+  * `maxFreeSockets` {Number} Maximum number of sockets (per host) to leave open
+    in a free state. Only relevant if `keepAlive` is set to `true`.
+    Default = `256`.
+  * `socketActiveTTL` {Number} Sets the socket active time to live, even if it's in use.
+    If not set, the behaviour keeps the same (the socket will be released only when free)
+    Default = `null`.
+
+## Usage
+
+```js
+const http = require('http');
+const Agent = require('agentkeepalive');
+
+const keepaliveAgent = new Agent({
+  maxSockets: 100,
+  maxFreeSockets: 10,
+  timeout: 60000, // active socket keepalive for 60 seconds
+  freeSocketTimeout: 30000, // free socket keepalive for 30 seconds
+});
+
+const options = {
+  host: 'cnodejs.org',
+  port: 80,
+  path: '/',
+  method: 'GET',
+  agent: keepaliveAgent,
+};
+
+const req = http.request(options, res => {
+  console.log('STATUS: ' + res.statusCode);
+  console.log('HEADERS: ' + JSON.stringify(res.headers));
+  res.setEncoding('utf8');
+  res.on('data', function (chunk) {
+    console.log('BODY: ' + chunk);
+  });
+});
+req.on('error', e => {
+  console.log('problem with request: ' + e.message);
+});
+req.end();
+
+setTimeout(() => {
+  if (keepaliveAgent.statusChanged) {
+    console.log('[%s] agent status changed: %j', Date(), keepaliveAgent.getCurrentStatus());
+  }
+}, 2000);
+
+```
+
+### `getter agent.statusChanged`
+
+counters have change or not after last checkpoint.
+
+### `agent.getCurrentStatus()`
+
+`agent.getCurrentStatus()` will return a object to show the status of this agent:
+
+```js
+{
+  createSocketCount: 10,
+  closeSocketCount: 5,
+  timeoutSocketCount: 0,
+  requestCount: 5,
+  freeSockets: { 'localhost:57479:': 3 },
+  sockets: { 'localhost:57479:': 5 },
+  requests: {}
+}
+```
+
+### Support `https`
+
+```js
+const https = require('https');
+const HttpsAgent = require('agentkeepalive').HttpsAgent;
+
+const keepaliveAgent = new HttpsAgent();
+// https://www.google.com/search?q=nodejs&sugexp=chrome,mod=12&sourceid=chrome&ie=UTF-8
+const options = {
+  host: 'www.google.com',
+  port: 443,
+  path: '/search?q=nodejs&sugexp=chrome,mod=12&sourceid=chrome&ie=UTF-8',
+  method: 'GET',
+  agent: keepaliveAgent,
+};
+
+const req = https.request(options, res => {
+  console.log('STATUS: ' + res.statusCode);
+  console.log('HEADERS: ' + JSON.stringify(res.headers));
+  res.setEncoding('utf8');
+  res.on('data', chunk => {
+    console.log('BODY: ' + chunk);
+  });
+});
+
+req.on('error', e => {
+  console.log('problem with request: ' + e.message);
+});
+req.end();
+
+setTimeout(() => {
+  console.log('agent status: %j', keepaliveAgent.getCurrentStatus());
+}, 2000);
+```
+
+### Support `req.reusedSocket`
+
+This agent implements the `req.reusedSocket` to determine whether a request is send through a reused socket.
+
+When server closes connection at unfortunate time ([keep-alive race](https://code-examples.net/en/q/28a8069)), the http client will throw a `ECONNRESET` error. Under this circumstance, `req.reusedSocket` is useful when we want to retry the request automatically.
+
+```js
+const http = require('http');
+const Agent = require('agentkeepalive');
+const agent = new Agent();
+
+const req = http
+  .get('http://localhost:3000', { agent }, (res) => {
+    // ...
+  })
+  .on('error', (err) => {
+    if (req.reusedSocket && err.code === 'ECONNRESET') {
+      // retry the request or anything else...
+    }
+  })
+```
+
+This behavior is consistent with Node.js core. But through `agentkeepalive`, you can use this feature in older Node.js version.
+
+## [Benchmark](https://github.com/node-modules/agentkeepalive/tree/master/benchmark)
+
+run the benchmark:
+
+```bash
+cd benchmark
+sh start.sh
+```
+
+Intel(R) Core(TM)2 Duo CPU     P8600  @ 2.40GHz
+
+node@v0.8.9
+
+50 maxSockets, 60 concurrent, 1000 requests per concurrent, 5ms delay
+
+Keep alive agent (30 seconds):
+
+```js
+Transactions:          60000 hits
+Availability:         100.00 %
+Elapsed time:          29.70 secs
+Data transferred:        14.88 MB
+Response time:            0.03 secs
+Transaction rate:      2020.20 trans/sec
+Throughput:           0.50 MB/sec
+Concurrency:           59.84
+Successful transactions:       60000
+Failed transactions:             0
+Longest transaction:          0.15
+Shortest transaction:         0.01
+```
+
+Normal agent:
+
+```js
+Transactions:          60000 hits
+Availability:         100.00 %
+Elapsed time:          46.53 secs
+Data transferred:        14.88 MB
+Response time:            0.05 secs
+Transaction rate:      1289.49 trans/sec
+Throughput:           0.32 MB/sec
+Concurrency:           59.81
+Successful transactions:       60000
+Failed transactions:             0
+Longest transaction:          0.45
+Shortest transaction:         0.00
+```
+
+Socket created:
+
+```bash
+[proxy.js:120000] keepalive, 50 created, 60000 requestFinished, 1200 req/socket, 0 requests, 0 sockets, 0 unusedSockets, 50 timeout
+{" <10ms":662," <15ms":17825," <20ms":20552," <30ms":17646," <40ms":2315," <50ms":567," <100ms":377," <150ms":56," <200ms":0," >=200ms+":0}
+----------------------------------------------------------------
+[proxy.js:120000] normal   , 53866 created, 84260 requestFinished, 1.56 req/socket, 0 requests, 0 sockets
+{" <10ms":75," <15ms":1112," <20ms":10947," <30ms":32130," <40ms":8228," <50ms":3002," <100ms":4274," <150ms":181," <200ms":18," >=200ms+":33}
+```
+
+## License
+
+[MIT](LICENSE)
diff --git a/node_modules/agentkeepalive/browser.js b/node_modules/agentkeepalive/browser.js
new file mode 100644
index 000000000..29c9398aa
--- /dev/null
+++ b/node_modules/agentkeepalive/browser.js
@@ -0,0 +1,5 @@
+module.exports = noop;
+module.exports.HttpsAgent = noop;
+
+// Noop function for browser since native api's don't use agents.
+function noop () {}
diff --git a/node_modules/agentkeepalive/index.d.ts b/node_modules/agentkeepalive/index.d.ts
new file mode 100644
index 000000000..33734c6ae
--- /dev/null
+++ b/node_modules/agentkeepalive/index.d.ts
@@ -0,0 +1,62 @@
+import * as http from 'http';
+import * as https from 'https';
+
+interface PlainObject {
+  [key: string]: any;
+}
+
+declare class HttpAgent extends http.Agent {
+  constructor(opts?: AgentKeepAlive.HttpOptions);
+  readonly statusChanged: boolean;
+  createSocket(req: http.IncomingMessage, options: http.RequestOptions, cb: Function): void;
+  getCurrentStatus(): AgentKeepAlive.AgentStatus;
+}
+
+interface Constants {
+  CURRENT_ID: Symbol;
+  CREATE_ID: Symbol;
+  INIT_SOCKET: Symbol;
+  CREATE_HTTPS_CONNECTION: Symbol;
+  SOCKET_CREATED_TIME: Symbol;
+  SOCKET_NAME: Symbol;
+  SOCKET_REQUEST_COUNT: Symbol;
+  SOCKET_REQUEST_FINISHED_COUNT: Symbol;
+}
+
+declare class AgentKeepAlive extends HttpAgent {}
+
+declare namespace AgentKeepAlive {
+  export interface AgentStatus {
+    createSocketCount: number;
+    createSocketErrorCount: number;
+    closeSocketCount: number;
+    errorSocketCount: number;
+    timeoutSocketCount: number;
+    requestCount: number;
+    freeSockets: PlainObject;
+    sockets: PlainObject;
+    requests: PlainObject;
+  }
+
+  interface CommonHttpOption {
+    keepAlive?: boolean;
+    freeSocketTimeout?: number;
+    freeSocketKeepAliveTimeout?: number;
+    timeout?: number;
+    socketActiveTTL?: number;
+  }
+
+  export interface HttpOptions extends http.AgentOptions, CommonHttpOption { }
+  export interface HttpsOptions extends https.AgentOptions, CommonHttpOption { }
+
+  export class HttpsAgent extends https.Agent {
+    constructor(opts?: HttpOptions);
+    readonly statusChanged: boolean;
+    createSocket(req: http.IncomingMessage, options: http.RequestOptions, cb: Function): void;
+    getCurrentStatus(): AgentStatus;
+  }
+
+  export const constants: Constants;
+}
+
+export = AgentKeepAlive;
diff --git a/node_modules/agentkeepalive/index.js b/node_modules/agentkeepalive/index.js
new file mode 100644
index 000000000..6ca151346
--- /dev/null
+++ b/node_modules/agentkeepalive/index.js
@@ -0,0 +1,5 @@
+'use strict';
+
+module.exports = require('./lib/agent');
+module.exports.HttpsAgent = require('./lib/https_agent');
+module.exports.constants = require('./lib/constants');
diff --git a/node_modules/agentkeepalive/lib/agent.js b/node_modules/agentkeepalive/lib/agent.js
new file mode 100644
index 000000000..5767abf22
--- /dev/null
+++ b/node_modules/agentkeepalive/lib/agent.js
@@ -0,0 +1,380 @@
+'use strict';
+
+const OriginalAgent = require('http').Agent;
+const ms = require('humanize-ms');
+const debug = require('debug')('agentkeepalive');
+const deprecate = require('depd')('agentkeepalive');
+const {
+  INIT_SOCKET,
+  CURRENT_ID,
+  CREATE_ID,
+  SOCKET_CREATED_TIME,
+  SOCKET_NAME,
+  SOCKET_REQUEST_COUNT,
+  SOCKET_REQUEST_FINISHED_COUNT,
+} = require('./constants');
+
+// OriginalAgent come from
+// - https://github.com/nodejs/node/blob/v8.12.0/lib/_http_agent.js
+// - https://github.com/nodejs/node/blob/v10.12.0/lib/_http_agent.js
+
+// node <= 10
+let defaultTimeoutListenerCount = 1;
+const majorVersion = parseInt(process.version.split('.', 1)[0].substring(1));
+if (majorVersion >= 11 && majorVersion <= 12) {
+  defaultTimeoutListenerCount = 2;
+} else if (majorVersion >= 13) {
+  defaultTimeoutListenerCount = 3;
+}
+
+class Agent extends OriginalAgent {
+  constructor(options) {
+    options = options || {};
+    options.keepAlive = options.keepAlive !== false;
+    // default is keep-alive and 15s free socket timeout
+    if (options.freeSocketTimeout === undefined) {
+      options.freeSocketTimeout = 15000;
+    }
+    // Legacy API: keepAliveTimeout should be rename to `freeSocketTimeout`
+    if (options.keepAliveTimeout) {
+      deprecate('options.keepAliveTimeout is deprecated, please use options.freeSocketTimeout instead');
+      options.freeSocketTimeout = options.keepAliveTimeout;
+      delete options.keepAliveTimeout;
+    }
+    // Legacy API: freeSocketKeepAliveTimeout should be rename to `freeSocketTimeout`
+    if (options.freeSocketKeepAliveTimeout) {
+      deprecate('options.freeSocketKeepAliveTimeout is deprecated, please use options.freeSocketTimeout instead');
+      options.freeSocketTimeout = options.freeSocketKeepAliveTimeout;
+      delete options.freeSocketKeepAliveTimeout;
+    }
+
+    // Sets the socket to timeout after timeout milliseconds of inactivity on the socket.
+    // By default is double free socket timeout.
+    if (options.timeout === undefined) {
+      // make sure socket default inactivity timeout >= 30s
+      options.timeout = Math.max(options.freeSocketTimeout * 2, 30000);
+    }
+
+    // support humanize format
+    options.timeout = ms(options.timeout);
+    options.freeSocketTimeout = ms(options.freeSocketTimeout);
+    options.socketActiveTTL = options.socketActiveTTL ? ms(options.socketActiveTTL) : 0;
+
+    super(options);
+
+    this[CURRENT_ID] = 0;
+
+    // create socket success counter
+    this.createSocketCount = 0;
+    this.createSocketCountLastCheck = 0;
+
+    this.createSocketErrorCount = 0;
+    this.createSocketErrorCountLastCheck = 0;
+
+    this.closeSocketCount = 0;
+    this.closeSocketCountLastCheck = 0;
+
+    // socket error event count
+    this.errorSocketCount = 0;
+    this.errorSocketCountLastCheck = 0;
+
+    // request finished counter
+    this.requestCount = 0;
+    this.requestCountLastCheck = 0;
+
+    // including free socket timeout counter
+    this.timeoutSocketCount = 0;
+    this.timeoutSocketCountLastCheck = 0;
+  }
+
+  get freeSocketKeepAliveTimeout() {
+    deprecate('agent.freeSocketKeepAliveTimeout is deprecated, please use agent.options.freeSocketTimeout instead');
+    return this.options.freeSocketTimeout;
+  }
+
+  get timeout() {
+    deprecate('agent.timeout is deprecated, please use agent.options.timeout instead');
+    return this.options.timeout;
+  }
+
+  get socketActiveTTL() {
+    deprecate('agent.socketActiveTTL is deprecated, please use agent.options.socketActiveTTL instead');
+    return this.options.socketActiveTTL;
+  }
+
+  keepSocketAlive(socket) {
+    const result = super.keepSocketAlive(socket);
+    // should not keepAlive, do nothing
+    if (!result) return result;
+
+    let freeSocketTimeout = this.options.freeSocketTimeout;
+    const socketActiveTTL = this.options.socketActiveTTL;
+    if (socketActiveTTL) {
+      // check socketActiveTTL
+      const aliveTime = Date.now() - socket[SOCKET_CREATED_TIME];
+      const diff = socketActiveTTL - aliveTime;
+      // destroy it
+      if (diff <= 0) {
+        debug('%s(requests: %s, finished: %s) free but need to destroy by TTL, alive %sms(max %sms)',
+          socket[SOCKET_NAME], socket[SOCKET_REQUEST_COUNT], socket[SOCKET_REQUEST_FINISHED_COUNT],
+          aliveTime, socketActiveTTL);
+        return false;
+      }
+
+      if (freeSocketTimeout && diff < freeSocketTimeout) {
+        debug('%s(requests: %s, finished: %s) free and wait for %sms TTL timeout',
+          socket[SOCKET_NAME], socket[SOCKET_REQUEST_COUNT], socket[SOCKET_REQUEST_FINISHED_COUNT],
+          diff);
+        freeSocketTimeout = diff;
+      }
+    }
+    // set freeSocketTimeout
+    if (freeSocketTimeout) {
+      // set free keepalive timer
+      // try to use socket custom freeSocketTimeout first, support headers['keep-alive']
+      // https://github.com/node-modules/urllib/blob/b76053020923f4d99a1c93cf2e16e0c5ba10bacf/lib/urllib.js#L498
+      const customFreeSocketTimeout = socket.freeSocketTimeout || socket.freeSocketKeepAliveTimeout;
+      if (customFreeSocketTimeout && customFreeSocketTimeout < freeSocketTimeout) {
+        freeSocketTimeout = customFreeSocketTimeout;
+      }
+      // FIXME: need to make setRequestSocket as a method on Agent class
+      // then we can reset the agent.options.timeout when free socket is reused.
+      socket.setTimeout(freeSocketTimeout);
+    }
+    return true;
+  }
+
+  // only call on addRequest
+  reuseSocket(...args) {
+    // reuseSocket(socket, req)
+    super.reuseSocket(...args);
+    const socket = args[0];
+    const req = args[1];
+    req.reusedSocket = true;
+    const agentTimeout = this.options.timeout;
+    if (getSocketTimeout(socket) !== agentTimeout) {
+      // reset timeout before use
+      socket.setTimeout(agentTimeout);
+      debug('%s reset timeout to %sms', socket[SOCKET_NAME], agentTimeout);
+    }
+    socket[SOCKET_REQUEST_COUNT]++;
+    debug('%s(requests: %s, finished: %s) reuse on addRequest, timeout %sms',
+      socket[SOCKET_NAME], socket[SOCKET_REQUEST_COUNT], socket[SOCKET_REQUEST_FINISHED_COUNT],
+      getSocketTimeout(socket));
+  }
+
+  [CREATE_ID]() {
+    const id = this[CURRENT_ID]++;
+    if (this[CURRENT_ID] === Number.MAX_SAFE_INTEGER) this[CURRENT_ID] = 0;
+    return id;
+  }
+
+  [INIT_SOCKET](socket, options) {
+    // bugfix here.
+    // https on node 8, 10 won't set agent.options.timeout by default
+    // TODO: need to fix on node itself
+    if (options.timeout) {
+      const timeout = getSocketTimeout(socket);
+      if (!timeout) {
+        socket.setTimeout(options.timeout);
+      }
+    }
+
+    if (this.options.keepAlive) {
+      // Disable Nagle's algorithm: http://blog.caustik.com/2012/04/08/scaling-node-js-to-100k-concurrent-connections/
+      // https://fengmk2.com/benchmark/nagle-algorithm-delayed-ack-mock.html
+      socket.setNoDelay(true);
+    }
+    this.createSocketCount++;
+    if (this.options.socketActiveTTL) {
+      socket[SOCKET_CREATED_TIME] = Date.now();
+    }
+    // don't show the hole '-----BEGIN CERTIFICATE----' key string
+    socket[SOCKET_NAME] = `sock[${this[CREATE_ID]()}#${options._agentKey}]`.split('-----BEGIN', 1)[0];
+    socket[SOCKET_REQUEST_COUNT] = 1;
+    socket[SOCKET_REQUEST_FINISHED_COUNT] = 0;
+    installListeners(this, socket, options);
+  }
+
+  createConnection(options, oncreate) {
+    let called = false;
+    const onNewCreate = (err, socket) => {
+      if (called) return;
+      called = true;
+
+      if (err) {
+        this.createSocketErrorCount++;
+        return oncreate(err);
+      }
+      this[INIT_SOCKET](socket, options);
+      oncreate(err, socket);
+    };
+
+    const newSocket = super.createConnection(options, onNewCreate);
+    if (newSocket) onNewCreate(null, newSocket);
+  }
+
+  get statusChanged() {
+    const changed = this.createSocketCount !== this.createSocketCountLastCheck ||
+      this.createSocketErrorCount !== this.createSocketErrorCountLastCheck ||
+      this.closeSocketCount !== this.closeSocketCountLastCheck ||
+      this.errorSocketCount !== this.errorSocketCountLastCheck ||
+      this.timeoutSocketCount !== this.timeoutSocketCountLastCheck ||
+      this.requestCount !== this.requestCountLastCheck;
+    if (changed) {
+      this.createSocketCountLastCheck = this.createSocketCount;
+      this.createSocketErrorCountLastCheck = this.createSocketErrorCount;
+      this.closeSocketCountLastCheck = this.closeSocketCount;
+      this.errorSocketCountLastCheck = this.errorSocketCount;
+      this.timeoutSocketCountLastCheck = this.timeoutSocketCount;
+      this.requestCountLastCheck = this.requestCount;
+    }
+    return changed;
+  }
+
+  getCurrentStatus() {
+    return {
+      createSocketCount: this.createSocketCount,
+      createSocketErrorCount: this.createSocketErrorCount,
+      closeSocketCount: this.closeSocketCount,
+      errorSocketCount: this.errorSocketCount,
+      timeoutSocketCount: this.timeoutSocketCount,
+      requestCount: this.requestCount,
+      freeSockets: inspect(this.freeSockets),
+      sockets: inspect(this.sockets),
+      requests: inspect(this.requests),
+    };
+  }
+}
+
+// node 8 don't has timeout attribute on socket
+// https://github.com/nodejs/node/pull/21204/files#diff-e6ef024c3775d787c38487a6309e491dR408
+function getSocketTimeout(socket) {
+  return socket.timeout || socket._idleTimeout;
+}
+
+function installListeners(agent, socket, options) {
+  debug('%s create, timeout %sms', socket[SOCKET_NAME], getSocketTimeout(socket));
+
+  // listener socket events: close, timeout, error, free
+  function onFree() {
+    // create and socket.emit('free') logic
+    // https://github.com/nodejs/node/blob/master/lib/_http_agent.js#L311
+    // no req on the socket, it should be the new socket
+    if (!socket._httpMessage && socket[SOCKET_REQUEST_COUNT] === 1) return;
+
+    socket[SOCKET_REQUEST_FINISHED_COUNT]++;
+    agent.requestCount++;
+    debug('%s(requests: %s, finished: %s) free',
+      socket[SOCKET_NAME], socket[SOCKET_REQUEST_COUNT], socket[SOCKET_REQUEST_FINISHED_COUNT]);
+
+    // should reuse on pedding requests?
+    const name = agent.getName(options);
+    if (socket.writable && agent.requests[name] && agent.requests[name].length) {
+      // will be reuse on agent free listener
+      socket[SOCKET_REQUEST_COUNT]++;
+      debug('%s(requests: %s, finished: %s) will be reuse on agent free event',
+        socket[SOCKET_NAME], socket[SOCKET_REQUEST_COUNT], socket[SOCKET_REQUEST_FINISHED_COUNT]);
+    }
+  }
+  socket.on('free', onFree);
+
+  function onClose(isError) {
+    debug('%s(requests: %s, finished: %s) close, isError: %s',
+      socket[SOCKET_NAME], socket[SOCKET_REQUEST_COUNT], socket[SOCKET_REQUEST_FINISHED_COUNT], isError);
+    agent.closeSocketCount++;
+  }
+  socket.on('close', onClose);
+
+  // start socket timeout handler
+  function onTimeout() {
+    // onTimeout and emitRequestTimeout(_http_client.js)
+    // https://github.com/nodejs/node/blob/v12.x/lib/_http_client.js#L711
+    const listenerCount = socket.listeners('timeout').length;
+    // node <= 10, default listenerCount is 1, onTimeout
+    // 11 < node <= 12, default listenerCount is 2, onTimeout and emitRequestTimeout
+    // node >= 13, default listenerCount is 3, onTimeout,
+    //   onTimeout(https://github.com/nodejs/node/pull/32000/files#diff-5f7fb0850412c6be189faeddea6c5359R333)
+    //   and emitRequestTimeout
+    const timeout = getSocketTimeout(socket);
+    const req = socket._httpMessage;
+    const reqTimeoutListenerCount = req && req.listeners('timeout').length || 0;
+    debug('%s(requests: %s, finished: %s) timeout after %sms, listeners %s, defaultTimeoutListenerCount %s, hasHttpRequest %s, HttpRequest timeoutListenerCount %s',
+      socket[SOCKET_NAME], socket[SOCKET_REQUEST_COUNT], socket[SOCKET_REQUEST_FINISHED_COUNT],
+      timeout, listenerCount, defaultTimeoutListenerCount, !!req, reqTimeoutListenerCount);
+    if (debug.enabled) {
+      debug('timeout listeners: %s', socket.listeners('timeout').map(f => f.name).join(', '));
+    }
+    agent.timeoutSocketCount++;
+    const name = agent.getName(options);
+    if (agent.freeSockets[name] && agent.freeSockets[name].indexOf(socket) !== -1) {
+      // free socket timeout, destroy quietly
+      socket.destroy();
+      // Remove it from freeSockets list immediately to prevent new requests
+      // from being sent through this socket.
+      agent.removeSocket(socket, options);
+      debug('%s is free, destroy quietly', socket[SOCKET_NAME]);
+    } else {
+      // if there is no any request socket timeout handler,
+      // agent need to handle socket timeout itself.
+      //
+      // custom request socket timeout handle logic must follow these rules:
+      //  1. Destroy socket first
+      //  2. Must emit socket 'agentRemove' event tell agent remove socket
+      //     from freeSockets list immediately.
+      //     Otherise you may be get 'socket hang up' error when reuse
+      //     free socket and timeout happen in the same time.
+      if (reqTimeoutListenerCount === 0) {
+        const error = new Error('Socket timeout');
+        error.code = 'ERR_SOCKET_TIMEOUT';
+        error.timeout = timeout;
+        // must manually call socket.end() or socket.destroy() to end the connection.
+        // https://nodejs.org/dist/latest-v10.x/docs/api/net.html#net_socket_settimeout_timeout_callback
+        socket.destroy(error);
+        agent.removeSocket(socket, options);
+        debug('%s destroy with timeout error', socket[SOCKET_NAME]);
+      }
+    }
+  }
+  socket.on('timeout', onTimeout);
+
+  function onError(err) {
+    const listenerCount = socket.listeners('error').length;
+    debug('%s(requests: %s, finished: %s) error: %s, listenerCount: %s',
+      socket[SOCKET_NAME], socket[SOCKET_REQUEST_COUNT], socket[SOCKET_REQUEST_FINISHED_COUNT],
+      err, listenerCount);
+    agent.errorSocketCount++;
+    if (listenerCount === 1) {
+      // if socket don't contain error event handler, don't catch it, emit it again
+      debug('%s emit uncaught error event', socket[SOCKET_NAME]);
+      socket.removeListener('error', onError);
+      socket.emit('error', err);
+    }
+  }
+  socket.on('error', onError);
+
+  function onRemove() {
+    debug('%s(requests: %s, finished: %s) agentRemove',
+      socket[SOCKET_NAME],
+      socket[SOCKET_REQUEST_COUNT], socket[SOCKET_REQUEST_FINISHED_COUNT]);
+    // We need this function for cases like HTTP 'upgrade'
+    // (defined by WebSockets) where we need to remove a socket from the
+    // pool because it'll be locked up indefinitely
+    socket.removeListener('close', onClose);
+    socket.removeListener('error', onError);
+    socket.removeListener('free', onFree);
+    socket.removeListener('timeout', onTimeout);
+    socket.removeListener('agentRemove', onRemove);
+  }
+  socket.on('agentRemove', onRemove);
+}
+
+module.exports = Agent;
+
+function inspect(obj) {
+  const res = {};
+  for (const key in obj) {
+    res[key] = obj[key].length;
+  }
+  return res;
+}
diff --git a/node_modules/agentkeepalive/lib/constants.js b/node_modules/agentkeepalive/lib/constants.js
new file mode 100644
index 000000000..ca7ab97ea
--- /dev/null
+++ b/node_modules/agentkeepalive/lib/constants.js
@@ -0,0 +1,14 @@
+'use strict';
+
+module.exports = {
+  // agent
+  CURRENT_ID: Symbol('agentkeepalive#currentId'),
+  CREATE_ID: Symbol('agentkeepalive#createId'),
+  INIT_SOCKET: Symbol('agentkeepalive#initSocket'),
+  CREATE_HTTPS_CONNECTION: Symbol('agentkeepalive#createHttpsConnection'),
+  // socket
+  SOCKET_CREATED_TIME: Symbol('agentkeepalive#socketCreatedTime'),
+  SOCKET_NAME: Symbol('agentkeepalive#socketName'),
+  SOCKET_REQUEST_COUNT: Symbol('agentkeepalive#socketRequestCount'),
+  SOCKET_REQUEST_FINISHED_COUNT: Symbol('agentkeepalive#socketRequestFinishedCount'),
+};
diff --git a/node_modules/agentkeepalive/lib/https_agent.js b/node_modules/agentkeepalive/lib/https_agent.js
new file mode 100644
index 000000000..73f529d65
--- /dev/null
+++ b/node_modules/agentkeepalive/lib/https_agent.js
@@ -0,0 +1,51 @@
+'use strict';
+
+const OriginalHttpsAgent = require('https').Agent;
+const HttpAgent = require('./agent');
+const {
+  INIT_SOCKET,
+  CREATE_HTTPS_CONNECTION,
+} = require('./constants');
+
+class HttpsAgent extends HttpAgent {
+  constructor(options) {
+    super(options);
+
+    this.defaultPort = 443;
+    this.protocol = 'https:';
+    this.maxCachedSessions = this.options.maxCachedSessions;
+    /* istanbul ignore next */
+    if (this.maxCachedSessions === undefined) {
+      this.maxCachedSessions = 100;
+    }
+
+    this._sessionCache = {
+      map: {},
+      list: [],
+    };
+  }
+
+  createConnection(options) {
+    const socket = this[CREATE_HTTPS_CONNECTION](options);
+    this[INIT_SOCKET](socket, options);
+    return socket;
+  }
+}
+
+// https://github.com/nodejs/node/blob/master/lib/https.js#L89
+HttpsAgent.prototype[CREATE_HTTPS_CONNECTION] = OriginalHttpsAgent.prototype.createConnection;
+
+[
+  'getName',
+  '_getSession',
+  '_cacheSession',
+  // https://github.com/nodejs/node/pull/4982
+  '_evictSession',
+].forEach(function(method) {
+  /* istanbul ignore next */
+  if (typeof OriginalHttpsAgent.prototype[method] === 'function') {
+    HttpsAgent.prototype[method] = OriginalHttpsAgent.prototype[method];
+  }
+});
+
+module.exports = HttpsAgent;
diff --git a/node_modules/agentkeepalive/node_modules/debug/CHANGELOG.md b/node_modules/agentkeepalive/node_modules/debug/CHANGELOG.md
new file mode 100644
index 000000000..820d21e33
--- /dev/null
+++ b/node_modules/agentkeepalive/node_modules/debug/CHANGELOG.md
@@ -0,0 +1,395 @@
+
+3.1.0 / 2017-09-26
+==================
+
+  * Add `DEBUG_HIDE_DATE` env var (#486)
+  * Remove ReDoS regexp in %o formatter (#504)
+  * Remove "component" from package.json
+  * Remove `component.json`
+  * Ignore package-lock.json
+  * Examples: fix colors printout
+  * Fix: browser detection
+  * Fix: spelling mistake (#496, @EdwardBetts)
+
+3.0.1 / 2017-08-24
+==================
+
+  * Fix: Disable colors in Edge and Internet Explorer (#489)
+
+3.0.0 / 2017-08-08
+==================
+
+  * Breaking: Remove DEBUG_FD (#406)
+  * Breaking: Use `Date#toISOString()` instead to `Date#toUTCString()` when output is not a TTY (#418)
+  * Breaking: Make millisecond timer namespace specific and allow 'always enabled' output (#408)
+  * Addition: document `enabled` flag (#465)
+  * Addition: add 256 colors mode (#481)
+  * Addition: `enabled()` updates existing debug instances, add `destroy()` function (#440)
+  * Update: component: update "ms" to v2.0.0
+  * Update: separate the Node and Browser tests in Travis-CI
+  * Update: refactor Readme, fixed documentation, added "Namespace Colors" section, redid screenshots
+  * Update: separate Node.js and web browser examples for organization
+  * Update: update "browserify" to v14.4.0
+  * Fix: fix Readme typo (#473)
+
+2.6.9 / 2017-09-22
+==================
+
+  * remove ReDoS regexp in %o formatter (#504)
+
+2.6.8 / 2017-05-18
+==================
+
+  * Fix: Check for undefined on browser globals (#462, @marbemac)
+
+2.6.7 / 2017-05-16
+==================
+
+  * Fix: Update ms to 2.0.0 to fix regular expression denial of service vulnerability (#458, @hubdotcom)
+  * Fix: Inline extend function in node implementation (#452, @dougwilson)
+  * Docs: Fix typo (#455, @msasad)
+
+2.6.5 / 2017-04-27
+==================
+  
+  * Fix: null reference check on window.documentElement.style.WebkitAppearance (#447, @thebigredgeek)
+  * Misc: clean up browser reference checks (#447, @thebigredgeek)
+  * Misc: add npm-debug.log to .gitignore (@thebigredgeek)
+
+
+2.6.4 / 2017-04-20
+==================
+
+  * Fix: bug that would occur if process.env.DEBUG is a non-string value. (#444, @LucianBuzzo)
+  * Chore: ignore bower.json in npm installations. (#437, @joaovieira)
+  * Misc: update "ms" to v0.7.3 (@tootallnate)
+
+2.6.3 / 2017-03-13
+==================
+
+  * Fix: Electron reference to `process.env.DEBUG` (#431, @paulcbetts)
+  * Docs: Changelog fix (@thebigredgeek)
+
+2.6.2 / 2017-03-10
+==================
+
+  * Fix: DEBUG_MAX_ARRAY_LENGTH (#420, @slavaGanzin)
+  * Docs: Add backers and sponsors from Open Collective (#422, @piamancini)
+  * Docs: Add Slackin invite badge (@tootallnate)
+
+2.6.1 / 2017-02-10
+==================
+
+  * Fix: Module's `export default` syntax fix for IE8 `Expected identifier` error
+  * Fix: Whitelist DEBUG_FD for values 1 and 2 only (#415, @pi0)
+  * Fix: IE8 "Expected identifier" error (#414, @vgoma)
+  * Fix: Namespaces would not disable once enabled (#409, @musikov)
+
+2.6.0 / 2016-12-28
+==================
+
+  * Fix: added better null pointer checks for browser useColors (@thebigredgeek)
+  * Improvement: removed explicit `window.debug` export (#404, @tootallnate)
+  * Improvement: deprecated `DEBUG_FD` environment variable (#405, @tootallnate)
+
+2.5.2 / 2016-12-25
+==================
+
+  * Fix: reference error on window within webworkers (#393, @KlausTrainer)
+  * Docs: fixed README typo (#391, @lurch)
+  * Docs: added notice about v3 api discussion (@thebigredgeek)
+
+2.5.1 / 2016-12-20
+==================
+
+  * Fix: babel-core compatibility
+
+2.5.0 / 2016-12-20
+==================
+
+  * Fix: wrong reference in bower file (@thebigredgeek)
+  * Fix: webworker compatibility (@thebigredgeek)
+  * Fix: output formatting issue (#388, @kribblo)
+  * Fix: babel-loader compatibility (#383, @escwald)
+  * Misc: removed built asset from repo and publications (@thebigredgeek)
+  * Misc: moved source files to /src (#378, @yamikuronue)
+  * Test: added karma integration and replaced babel with browserify for browser tests (#378, @yamikuronue)
+  * Test: coveralls integration (#378, @yamikuronue)
+  * Docs: simplified language in the opening paragraph (#373, @yamikuronue)
+
+2.4.5 / 2016-12-17
+==================
+
+  * Fix: `navigator` undefined in Rhino (#376, @jochenberger)
+  * Fix: custom log function (#379, @hsiliev)
+  * Improvement: bit of cleanup + linting fixes (@thebigredgeek)
+  * Improvement: rm non-maintainted `dist/` dir (#375, @freewil)
+  * Docs: simplified language in the opening paragraph. (#373, @yamikuronue)
+
+2.4.4 / 2016-12-14
+==================
+
+  * Fix: work around debug being loaded in preload scripts for electron (#368, @paulcbetts)
+
+2.4.3 / 2016-12-14
+==================
+
+  * Fix: navigation.userAgent error for react native (#364, @escwald)
+
+2.4.2 / 2016-12-14
+==================
+
+  * Fix: browser colors (#367, @tootallnate)
+  * Misc: travis ci integration (@thebigredgeek)
+  * Misc: added linting and testing boilerplate with sanity check (@thebigredgeek)
+
+2.4.1 / 2016-12-13
+==================
+
+  * Fix: typo that broke the package (#356)
+
+2.4.0 / 2016-12-13
+==================
+
+  * Fix: bower.json references unbuilt src entry point (#342, @justmatt)
+  * Fix: revert "handle regex special characters" (@tootallnate)
+  * Feature: configurable util.inspect()`options for NodeJS (#327, @tootallnate)
+  * Feature: %O`(big O) pretty-prints objects (#322, @tootallnate)
+  * Improvement: allow colors in workers (#335, @botverse)
+  * Improvement: use same color for same namespace. (#338, @lchenay)
+
+2.3.3 / 2016-11-09
+==================
+
+  * Fix: Catch `JSON.stringify()` errors (#195, Jovan Alleyne)
+  * Fix: Returning `localStorage` saved values (#331, Levi Thomason)
+  * Improvement: Don't create an empty object when no `process` (Nathan Rajlich)
+
+2.3.2 / 2016-11-09
+==================
+
+  * Fix: be super-safe in index.js as well (@TooTallNate)
+  * Fix: should check whether process exists (Tom Newby)
+
+2.3.1 / 2016-11-09
+==================
+
+  * Fix: Added electron compatibility (#324, @paulcbetts)
+  * Improvement: Added performance optimizations (@tootallnate)
+  * Readme: Corrected PowerShell environment variable example (#252, @gimre)
+  * Misc: Removed yarn lock file from source control (#321, @fengmk2)
+
+2.3.0 / 2016-11-07
+==================
+
+  * Fix: Consistent placement of ms diff at end of output (#215, @gorangajic)
+  * Fix: Escaping of regex special characters in namespace strings (#250, @zacronos)
+  * Fix: Fixed bug causing crash on react-native (#282, @vkarpov15)
+  * Feature: Enabled ES6+ compatible import via default export (#212 @bucaran)
+  * Feature: Added %O formatter to reflect Chrome's console.log capability (#279, @oncletom)
+  * Package: Update "ms" to 0.7.2 (#315, @DevSide)
+  * Package: removed superfluous version property from bower.json (#207 @kkirsche)
+  * Readme: fix USE_COLORS to DEBUG_COLORS
+  * Readme: Doc fixes for format string sugar (#269, @mlucool)
+  * Readme: Updated docs for DEBUG_FD and DEBUG_COLORS environment variables (#232, @mattlyons0)
+  * Readme: doc fixes for PowerShell (#271 #243, @exoticknight @unreadable)
+  * Readme: better docs for browser support (#224, @matthewmueller)
+  * Tooling: Added yarn integration for development (#317, @thebigredgeek)
+  * Misc: Renamed History.md to CHANGELOG.md (@thebigredgeek)
+  * Misc: Added license file (#226 #274, @CantemoInternal @sdaitzman)
+  * Misc: Updated contributors (@thebigredgeek)
+
+2.2.0 / 2015-05-09
+==================
+
+  * package: update "ms" to v0.7.1 (#202, @dougwilson)
+  * README: add logging to file example (#193, @DanielOchoa)
+  * README: fixed a typo (#191, @amir-s)
+  * browser: expose `storage` (#190, @stephenmathieson)
+  * Makefile: add a `distclean` target (#189, @stephenmathieson)
+
+2.1.3 / 2015-03-13
+==================
+
+  * Updated stdout/stderr example (#186)
+  * Updated example/stdout.js to match debug current behaviour
+  * Renamed example/stderr.js to stdout.js
+  * Update Readme.md (#184)
+  * replace high intensity foreground color for bold (#182, #183)
+
+2.1.2 / 2015-03-01
+==================
+
+  * dist: recompile
+  * update "ms" to v0.7.0
+  * package: update "browserify" to v9.0.3
+  * component: fix "ms.js" repo location
+  * changed bower package name
+  * updated documentation about using debug in a browser
+  * fix: security error on safari (#167, #168, @yields)
+
+2.1.1 / 2014-12-29
+==================
+
+  * browser: use `typeof` to check for `console` existence
+  * browser: check for `console.log` truthiness (fix IE 8/9)
+  * browser: add support for Chrome apps
+  * Readme: added Windows usage remarks
+  * Add `bower.json` to properly support bower install
+
+2.1.0 / 2014-10-15
+==================
+
+  * node: implement `DEBUG_FD` env variable support
+  * package: update "browserify" to v6.1.0
+  * package: add "license" field to package.json (#135, @panuhorsmalahti)
+
+2.0.0 / 2014-09-01
+==================
+
+  * package: update "browserify" to v5.11.0
+  * node: use stderr rather than stdout for logging (#29, @stephenmathieson)
+
+1.0.4 / 2014-07-15
+==================
+
+  * dist: recompile
+  * example: remove `console.info()` log usage
+  * example: add "Content-Type" UTF-8 header to browser example
+  * browser: place %c marker after the space character
+  * browser: reset the "content" color via `color: inherit`
+  * browser: add colors support for Firefox >= v31
+  * debug: prefer an instance `log()` function over the global one (#119)
+  * Readme: update documentation about styled console logs for FF v31 (#116, @wryk)
+
+1.0.3 / 2014-07-09
+==================
+
+  * Add support for multiple wildcards in namespaces (#122, @seegno)
+  * browser: fix lint
+
+1.0.2 / 2014-06-10
+==================
+
+  * browser: update color palette (#113, @gscottolson)
+  * common: make console logging function configurable (#108, @timoxley)
+  * node: fix %o colors on old node <= 0.8.x
+  * Makefile: find node path using shell/which (#109, @timoxley)
+
+1.0.1 / 2014-06-06
+==================
+
+  * browser: use `removeItem()` to clear localStorage
+  * browser, node: don't set DEBUG if namespaces is undefined (#107, @leedm777)
+  * package: add "contributors" section
+  * node: fix comment typo
+  * README: list authors
+
+1.0.0 / 2014-06-04
+==================
+
+  * make ms diff be global, not be scope
+  * debug: ignore empty strings in enable()
+  * node: make DEBUG_COLORS able to disable coloring
+  * *: export the `colors` array
+  * npmignore: don't publish the `dist` dir
+  * Makefile: refactor to use browserify
+  * package: add "browserify" as a dev dependency
+  * Readme: add Web Inspector Colors section
+  * node: reset terminal color for the debug content
+  * node: map "%o" to `util.inspect()`
+  * browser: map "%j" to `JSON.stringify()`
+  * debug: add custom "formatters"
+  * debug: use "ms" module for humanizing the diff
+  * Readme: add "bash" syntax highlighting
+  * browser: add Firebug color support
+  * browser: add colors for WebKit browsers
+  * node: apply log to `console`
+  * rewrite: abstract common logic for Node & browsers
+  * add .jshintrc file
+
+0.8.1 / 2014-04-14
+==================
+
+  * package: re-add the "component" section
+
+0.8.0 / 2014-03-30
+==================
+
+  * add `enable()` method for nodejs. Closes #27
+  * change from stderr to stdout
+  * remove unnecessary index.js file
+
+0.7.4 / 2013-11-13
+==================
+
+  * remove "browserify" key from package.json (fixes something in browserify)
+
+0.7.3 / 2013-10-30
+==================
+
+  * fix: catch localStorage security error when cookies are blocked (Chrome)
+  * add debug(err) support. Closes #46
+  * add .browser prop to package.json. Closes #42
+
+0.7.2 / 2013-02-06
+==================
+
+  * fix package.json
+  * fix: Mobile Safari (private mode) is broken with debug
+  * fix: Use unicode to send escape character to shell instead of octal to work with strict mode javascript
+
+0.7.1 / 2013-02-05
+==================
+
+  * add repository URL to package.json
+  * add DEBUG_COLORED to force colored output
+  * add browserify support
+  * fix component. Closes #24
+
+0.7.0 / 2012-05-04
+==================
+
+  * Added .component to package.json
+  * Added debug.component.js build
+
+0.6.0 / 2012-03-16
+==================
+
+  * Added support for "-" prefix in DEBUG [Vinay Pulim]
+  * Added `.enabled` flag to the node version [TooTallNate]
+
+0.5.0 / 2012-02-02
+==================
+
+  * Added: humanize diffs. Closes #8
+  * Added `debug.disable()` to the CS variant
+  * Removed padding. Closes #10
+  * Fixed: persist client-side variant again. Closes #9
+
+0.4.0 / 2012-02-01
+==================
+
+  * Added browser variant support for older browsers [TooTallNate]
+  * Added `debug.enable('project:*')` to browser variant [TooTallNate]
+  * Added padding to diff (moved it to the right)
+
+0.3.0 / 2012-01-26
+==================
+
+  * Added millisecond diff when isatty, otherwise UTC string
+
+0.2.0 / 2012-01-22
+==================
+
+  * Added wildcard support
+
+0.1.0 / 2011-12-02
+==================
+
+  * Added: remove colors unless stderr isatty [TooTallNate]
+
+0.0.1 / 2010-01-03
+==================
+
+  * Initial release
diff --git a/node_modules/agentkeepalive/node_modules/debug/LICENSE b/node_modules/agentkeepalive/node_modules/debug/LICENSE
new file mode 100644
index 000000000..658c933d2
--- /dev/null
+++ b/node_modules/agentkeepalive/node_modules/debug/LICENSE
@@ -0,0 +1,19 @@
+(The MIT License)
+
+Copyright (c) 2014 TJ Holowaychuk <tj@vision-media.ca>
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of this software 
+and associated documentation files (the 'Software'), to deal in the Software without restriction, 
+including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, 
+and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so,
+subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all copies or substantial 
+portions of the Software.
+
+THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT 
+LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. 
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, 
+WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE 
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
diff --git a/node_modules/agentkeepalive/node_modules/debug/README.md b/node_modules/agentkeepalive/node_modules/debug/README.md
new file mode 100644
index 000000000..88dae35d9
--- /dev/null
+++ b/node_modules/agentkeepalive/node_modules/debug/README.md
@@ -0,0 +1,455 @@
+# debug
+[![Build Status](https://travis-ci.org/visionmedia/debug.svg?branch=master)](https://travis-ci.org/visionmedia/debug)  [![Coverage Status](https://coveralls.io/repos/github/visionmedia/debug/badge.svg?branch=master)](https://coveralls.io/github/visionmedia/debug?branch=master)  [![Slack](https://visionmedia-community-slackin.now.sh/badge.svg)](https://visionmedia-community-slackin.now.sh/) [![OpenCollective](https://opencollective.com/debug/backers/badge.svg)](#backers)
+[![OpenCollective](https://opencollective.com/debug/sponsors/badge.svg)](#sponsors)
+
+<img width="647" src="https://user-images.githubusercontent.com/71256/29091486-fa38524c-7c37-11e7-895f-e7ec8e1039b6.png">
+
+A tiny JavaScript debugging utility modelled after Node.js core's debugging
+technique. Works in Node.js and web browsers.
+
+## Installation
+
+```bash
+$ npm install debug
+```
+
+## Usage
+
+`debug` exposes a function; simply pass this function the name of your module, and it will return a decorated version of `console.error` for you to pass debug statements to. This will allow you to toggle the debug output for different parts of your module as well as the module as a whole.
+
+Example [_app.js_](./examples/node/app.js):
+
+```js
+var debug = require('debug')('http')
+  , http = require('http')
+  , name = 'My App';
+
+// fake app
+
+debug('booting %o', name);
+
+http.createServer(function(req, res){
+  debug(req.method + ' ' + req.url);
+  res.end('hello\n');
+}).listen(3000, function(){
+  debug('listening');
+});
+
+// fake worker of some kind
+
+require('./worker');
+```
+
+Example [_worker.js_](./examples/node/worker.js):
+
+```js
+var a = require('debug')('worker:a')
+  , b = require('debug')('worker:b');
+
+function work() {
+  a('doing lots of uninteresting work');
+  setTimeout(work, Math.random() * 1000);
+}
+
+work();
+
+function workb() {
+  b('doing some work');
+  setTimeout(workb, Math.random() * 2000);
+}
+
+workb();
+```
+
+The `DEBUG` environment variable is then used to enable these based on space or
+comma-delimited names.
+
+Here are some examples:
+
+<img width="647" alt="screen shot 2017-08-08 at 12 53 04 pm" src="https://user-images.githubusercontent.com/71256/29091703-a6302cdc-7c38-11e7-8304-7c0b3bc600cd.png">
+<img width="647" alt="screen shot 2017-08-08 at 12 53 38 pm" src="https://user-images.githubusercontent.com/71256/29091700-a62a6888-7c38-11e7-800b-db911291ca2b.png">
+<img width="647" alt="screen shot 2017-08-08 at 12 53 25 pm" src="https://user-images.githubusercontent.com/71256/29091701-a62ea114-7c38-11e7-826a-2692bedca740.png">
+
+#### Windows command prompt notes
+
+##### CMD
+
+On Windows the environment variable is set using the `set` command.
+
+```cmd
+set DEBUG=*,-not_this
+```
+
+Example:
+
+```cmd
+set DEBUG=* & node app.js
+```
+
+##### PowerShell (VS Code default)
+
+PowerShell uses different syntax to set environment variables.
+
+```cmd
+$env:DEBUG = "*,-not_this"
+```
+
+Example:
+
+```cmd
+$env:DEBUG='app';node app.js
+```
+
+Then, run the program to be debugged as usual.
+
+npm script example:
+```js
+  "windowsDebug": "@powershell -Command $env:DEBUG='*';node app.js",
+```
+
+## Namespace Colors
+
+Every debug instance has a color generated for it based on its namespace name.
+This helps when visually parsing the debug output to identify which debug instance
+a debug line belongs to.
+
+#### Node.js
+
+In Node.js, colors are enabled when stderr is a TTY. You also _should_ install
+the [`supports-color`](https://npmjs.org/supports-color) module alongside debug,
+otherwise debug will only use a small handful of basic colors.
+
+<img width="521" src="https://user-images.githubusercontent.com/71256/29092181-47f6a9e6-7c3a-11e7-9a14-1928d8a711cd.png">
+
+#### Web Browser
+
+Colors are also enabled on "Web Inspectors" that understand the `%c` formatting
+option. These are WebKit web inspectors, Firefox ([since version
+31](https://hacks.mozilla.org/2014/05/editable-box-model-multiple-selection-sublime-text-keys-much-more-firefox-developer-tools-episode-31/))
+and the Firebug plugin for Firefox (any version).
+
+<img width="524" src="https://user-images.githubusercontent.com/71256/29092033-b65f9f2e-7c39-11e7-8e32-f6f0d8e865c1.png">
+
+
+## Millisecond diff
+
+When actively developing an application it can be useful to see when the time spent between one `debug()` call and the next. Suppose for example you invoke `debug()` before requesting a resource, and after as well, the "+NNNms" will show you how much time was spent between calls.
+
+<img width="647" src="https://user-images.githubusercontent.com/71256/29091486-fa38524c-7c37-11e7-895f-e7ec8e1039b6.png">
+
+When stdout is not a TTY, `Date#toISOString()` is used, making it more useful for logging the debug information as shown below:
+
+<img width="647" src="https://user-images.githubusercontent.com/71256/29091956-6bd78372-7c39-11e7-8c55-c948396d6edd.png">
+
+
+## Conventions
+
+If you're using this in one or more of your libraries, you _should_ use the name of your library so that developers may toggle debugging as desired without guessing names. If you have more than one debuggers you _should_ prefix them with your library name and use ":" to separate features. For example "bodyParser" from Connect would then be "connect:bodyParser".  If you append a "*" to the end of your name, it will always be enabled regardless of the setting of the DEBUG environment variable.  You can then use it for normal output as well as debug output.
+
+## Wildcards
+
+The `*` character may be used as a wildcard. Suppose for example your library has
+debuggers named "connect:bodyParser", "connect:compress", "connect:session",
+instead of listing all three with
+`DEBUG=connect:bodyParser,connect:compress,connect:session`, you may simply do
+`DEBUG=connect:*`, or to run everything using this module simply use `DEBUG=*`.
+
+You can also exclude specific debuggers by prefixing them with a "-" character.
+For example, `DEBUG=*,-connect:*` would include all debuggers except those
+starting with "connect:".
+
+## Environment Variables
+
+When running through Node.js, you can set a few environment variables that will
+change the behavior of the debug logging:
+
+| Name      | Purpose                                         |
+|-----------|-------------------------------------------------|
+| `DEBUG`   | Enables/disables specific debugging namespaces. |
+| `DEBUG_HIDE_DATE` | Hide date from debug output (non-TTY).  |
+| `DEBUG_COLORS`| Whether or not to use colors in the debug output. |
+| `DEBUG_DEPTH` | Object inspection depth.                    |
+| `DEBUG_SHOW_HIDDEN` | Shows hidden properties on inspected objects. |
+
+
+__Note:__ The environment variables beginning with `DEBUG_` end up being
+converted into an Options object that gets used with `%o`/`%O` formatters.
+See the Node.js documentation for
+[`util.inspect()`](https://nodejs.org/api/util.html#util_util_inspect_object_options)
+for the complete list.
+
+## Formatters
+
+Debug uses [printf-style](https://wikipedia.org/wiki/Printf_format_string) formatting.
+Below are the officially supported formatters:
+
+| Formatter | Representation |
+|-----------|----------------|
+| `%O`      | Pretty-print an Object on multiple lines. |
+| `%o`      | Pretty-print an Object all on a single line. |
+| `%s`      | String. |
+| `%d`      | Number (both integer and float). |
+| `%j`      | JSON. Replaced with the string '[Circular]' if the argument contains circular references. |
+| `%%`      | Single percent sign ('%'). This does not consume an argument. |
+
+
+### Custom formatters
+
+You can add custom formatters by extending the `debug.formatters` object.
+For example, if you wanted to add support for rendering a Buffer as hex with
+`%h`, you could do something like:
+
+```js
+const createDebug = require('debug')
+createDebug.formatters.h = (v) => {
+  return v.toString('hex')
+}
+
+// …elsewhere
+const debug = createDebug('foo')
+debug('this is hex: %h', new Buffer('hello world'))
+//   foo this is hex: 68656c6c6f20776f726c6421 +0ms
+```
+
+
+## Browser Support
+
+You can build a browser-ready script using [browserify](https://github.com/substack/node-browserify),
+or just use the [browserify-as-a-service](https://wzrd.in/) [build](https://wzrd.in/standalone/debug@latest),
+if you don't want to build it yourself.
+
+Debug's enable state is currently persisted by `localStorage`.
+Consider the situation shown below where you have `worker:a` and `worker:b`,
+and wish to debug both. You can enable this using `localStorage.debug`:
+
+```js
+localStorage.debug = 'worker:*'
+```
+
+And then refresh the page.
+
+```js
+a = debug('worker:a');
+b = debug('worker:b');
+
+setInterval(function(){
+  a('doing some work');
+}, 1000);
+
+setInterval(function(){
+  b('doing some work');
+}, 1200);
+```
+
+
+## Output streams
+
+  By default `debug` will log to stderr, however this can be configured per-namespace by overriding the `log` method:
+
+Example [_stdout.js_](./examples/node/stdout.js):
+
+```js
+var debug = require('debug');
+var error = debug('app:error');
+
+// by default stderr is used
+error('goes to stderr!');
+
+var log = debug('app:log');
+// set this namespace to log via console.log
+log.log = console.log.bind(console); // don't forget to bind to console!
+log('goes to stdout');
+error('still goes to stderr!');
+
+// set all output to go via console.info
+// overrides all per-namespace log settings
+debug.log = console.info.bind(console);
+error('now goes to stdout via console.info');
+log('still goes to stdout, but via console.info now');
+```
+
+## Extend
+You can simply extend debugger 
+```js
+const log = require('debug')('auth');
+
+//creates new debug instance with extended namespace
+const logSign = log.extend('sign');
+const logLogin = log.extend('login');
+
+log('hello'); // auth hello
+logSign('hello'); //auth:sign hello
+logLogin('hello'); //auth:login hello
+```
+
+## Set dynamically
+
+You can also enable debug dynamically by calling the `enable()` method :
+
+```js
+let debug = require('debug');
+
+console.log(1, debug.enabled('test'));
+
+debug.enable('test');
+console.log(2, debug.enabled('test'));
+
+debug.disable();
+console.log(3, debug.enabled('test'));
+
+```
+
+print :   
+```
+1 false
+2 true
+3 false
+```
+
+Usage :  
+`enable(namespaces)`  
+`namespaces` can include modes separated by a colon and wildcards.
+   
+Note that calling `enable()` completely overrides previously set DEBUG variable : 
+
+```
+$ DEBUG=foo node -e 'var dbg = require("debug"); dbg.enable("bar"); console.log(dbg.enabled("foo"))'
+=> false
+```
+
+`disable()`
+
+Will disable all namespaces. The functions returns the namespaces currently
+enabled (and skipped). This can be useful if you want to disable debugging
+temporarily without knowing what was enabled to begin with.
+
+For example:
+
+```js
+let debug = require('debug');
+debug.enable('foo:*,-foo:bar');
+let namespaces = debug.disable();
+debug.enable(namespaces);
+```
+
+Note: There is no guarantee that the string will be identical to the initial
+enable string, but semantically they will be identical.
+
+## Checking whether a debug target is enabled
+
+After you've created a debug instance, you can determine whether or not it is
+enabled by checking the `enabled` property:
+
+```javascript
+const debug = require('debug')('http');
+
+if (debug.enabled) {
+  // do stuff...
+}
+```
+
+You can also manually toggle this property to force the debug instance to be
+enabled or disabled.
+
+
+## Authors
+
+ - TJ Holowaychuk
+ - Nathan Rajlich
+ - Andrew Rhyne
+
+## Backers
+
+Support us with a monthly donation and help us continue our activities. [[Become a backer](https://opencollective.com/debug#backer)]
+
+<a href="https://opencollective.com/debug/backer/0/website" target="_blank"><img src="https://opencollective.com/debug/backer/0/avatar.svg"></a>
+<a href="https://opencollective.com/debug/backer/1/website" target="_blank"><img src="https://opencollective.com/debug/backer/1/avatar.svg"></a>
+<a href="https://opencollective.com/debug/backer/2/website" target="_blank"><img src="https://opencollective.com/debug/backer/2/avatar.svg"></a>
+<a href="https://opencollective.com/debug/backer/3/website" target="_blank"><img src="https://opencollective.com/debug/backer/3/avatar.svg"></a>
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+<a href="https://opencollective.com/debug/backer/11/website" target="_blank"><img src="https://opencollective.com/debug/backer/11/avatar.svg"></a>
+<a href="https://opencollective.com/debug/backer/12/website" target="_blank"><img src="https://opencollective.com/debug/backer/12/avatar.svg"></a>
+<a href="https://opencollective.com/debug/backer/13/website" target="_blank"><img src="https://opencollective.com/debug/backer/13/avatar.svg"></a>
+<a href="https://opencollective.com/debug/backer/14/website" target="_blank"><img src="https://opencollective.com/debug/backer/14/avatar.svg"></a>
+<a href="https://opencollective.com/debug/backer/15/website" target="_blank"><img src="https://opencollective.com/debug/backer/15/avatar.svg"></a>
+<a href="https://opencollective.com/debug/backer/16/website" target="_blank"><img src="https://opencollective.com/debug/backer/16/avatar.svg"></a>
+<a href="https://opencollective.com/debug/backer/17/website" target="_blank"><img src="https://opencollective.com/debug/backer/17/avatar.svg"></a>
+<a href="https://opencollective.com/debug/backer/18/website" target="_blank"><img src="https://opencollective.com/debug/backer/18/avatar.svg"></a>
+<a href="https://opencollective.com/debug/backer/19/website" target="_blank"><img src="https://opencollective.com/debug/backer/19/avatar.svg"></a>
+<a href="https://opencollective.com/debug/backer/20/website" target="_blank"><img src="https://opencollective.com/debug/backer/20/avatar.svg"></a>
+<a href="https://opencollective.com/debug/backer/21/website" target="_blank"><img src="https://opencollective.com/debug/backer/21/avatar.svg"></a>
+<a href="https://opencollective.com/debug/backer/22/website" target="_blank"><img src="https://opencollective.com/debug/backer/22/avatar.svg"></a>
+<a href="https://opencollective.com/debug/backer/23/website" target="_blank"><img src="https://opencollective.com/debug/backer/23/avatar.svg"></a>
+<a href="https://opencollective.com/debug/backer/24/website" target="_blank"><img src="https://opencollective.com/debug/backer/24/avatar.svg"></a>
+<a href="https://opencollective.com/debug/backer/25/website" target="_blank"><img src="https://opencollective.com/debug/backer/25/avatar.svg"></a>
+<a href="https://opencollective.com/debug/backer/26/website" target="_blank"><img src="https://opencollective.com/debug/backer/26/avatar.svg"></a>
+<a href="https://opencollective.com/debug/backer/27/website" target="_blank"><img src="https://opencollective.com/debug/backer/27/avatar.svg"></a>
+<a href="https://opencollective.com/debug/backer/28/website" target="_blank"><img src="https://opencollective.com/debug/backer/28/avatar.svg"></a>
+<a href="https://opencollective.com/debug/backer/29/website" target="_blank"><img src="https://opencollective.com/debug/backer/29/avatar.svg"></a>
+
+
+## Sponsors
+
+Become a sponsor and get your logo on our README on Github with a link to your site. [[Become a sponsor](https://opencollective.com/debug#sponsor)]
+
+<a href="https://opencollective.com/debug/sponsor/0/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/0/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/1/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/1/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/2/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/2/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/3/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/3/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/4/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/4/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/5/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/5/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/6/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/6/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/7/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/7/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/8/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/8/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/9/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/9/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/10/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/10/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/11/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/11/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/12/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/12/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/13/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/13/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/14/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/14/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/15/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/15/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/16/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/16/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/17/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/17/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/18/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/18/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/19/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/19/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/20/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/20/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/21/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/21/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/22/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/22/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/23/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/23/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/24/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/24/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/25/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/25/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/26/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/26/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/27/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/27/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/28/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/28/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/29/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/29/avatar.svg"></a>
+
+## License
+
+(The MIT License)
+
+Copyright (c) 2014-2017 TJ Holowaychuk &lt;tj@vision-media.ca&gt;
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+'Software'), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/node_modules/agentkeepalive/node_modules/debug/dist/debug.js b/node_modules/agentkeepalive/node_modules/debug/dist/debug.js
new file mode 100644
index 000000000..89ad0c217
--- /dev/null
+++ b/node_modules/agentkeepalive/node_modules/debug/dist/debug.js
@@ -0,0 +1,912 @@
+"use strict";
+
+function _toConsumableArray(arr) { return _arrayWithoutHoles(arr) || _iterableToArray(arr) || _nonIterableSpread(); }
+
+function _nonIterableSpread() { throw new TypeError("Invalid attempt to spread non-iterable instance"); }
+
+function _iterableToArray(iter) { if (Symbol.iterator in Object(iter) || Object.prototype.toString.call(iter) === "[object Arguments]") return Array.from(iter); }
+
+function _arrayWithoutHoles(arr) { if (Array.isArray(arr)) { for (var i = 0, arr2 = new Array(arr.length); i < arr.length; i++) { arr2[i] = arr[i]; } return arr2; } }
+
+function _typeof(obj) { if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }
+
+(function (f) {
+  if ((typeof exports === "undefined" ? "undefined" : _typeof(exports)) === "object" && typeof module !== "undefined") {
+    module.exports = f();
+  } else if (typeof define === "function" && define.amd) {
+    define([], f);
+  } else {
+    var g;
+
+    if (typeof window !== "undefined") {
+      g = window;
+    } else if (typeof global !== "undefined") {
+      g = global;
+    } else if (typeof self !== "undefined") {
+      g = self;
+    } else {
+      g = this;
+    }
+
+    g.debug = f();
+  }
+})(function () {
+  var define, module, exports;
+  return function () {
+    function r(e, n, t) {
+      function o(i, f) {
+        if (!n[i]) {
+          if (!e[i]) {
+            var c = "function" == typeof require && require;
+            if (!f && c) return c(i, !0);
+            if (u) return u(i, !0);
+            var a = new Error("Cannot find module '" + i + "'");
+            throw a.code = "MODULE_NOT_FOUND", a;
+          }
+
+          var p = n[i] = {
+            exports: {}
+          };
+          e[i][0].call(p.exports, function (r) {
+            var n = e[i][1][r];
+            return o(n || r);
+          }, p, p.exports, r, e, n, t);
+        }
+
+        return n[i].exports;
+      }
+
+      for (var u = "function" == typeof require && require, i = 0; i < t.length; i++) {
+        o(t[i]);
+      }
+
+      return o;
+    }
+
+    return r;
+  }()({
+    1: [function (require, module, exports) {
+      /**
+       * Helpers.
+       */
+      var s = 1000;
+      var m = s * 60;
+      var h = m * 60;
+      var d = h * 24;
+      var w = d * 7;
+      var y = d * 365.25;
+      /**
+       * Parse or format the given `val`.
+       *
+       * Options:
+       *
+       *  - `long` verbose formatting [false]
+       *
+       * @param {String|Number} val
+       * @param {Object} [options]
+       * @throws {Error} throw an error if val is not a non-empty string or a number
+       * @return {String|Number}
+       * @api public
+       */
+
+      module.exports = function (val, options) {
+        options = options || {};
+
+        var type = _typeof(val);
+
+        if (type === 'string' && val.length > 0) {
+          return parse(val);
+        } else if (type === 'number' && isNaN(val) === false) {
+          return options.long ? fmtLong(val) : fmtShort(val);
+        }
+
+        throw new Error('val is not a non-empty string or a valid number. val=' + JSON.stringify(val));
+      };
+      /**
+       * Parse the given `str` and return milliseconds.
+       *
+       * @param {String} str
+       * @return {Number}
+       * @api private
+       */
+
+
+      function parse(str) {
+        str = String(str);
+
+        if (str.length > 100) {
+          return;
+        }
+
+        var match = /^((?:\d+)?\-?\d?\.?\d+) *(milliseconds?|msecs?|ms|seconds?|secs?|s|minutes?|mins?|m|hours?|hrs?|h|days?|d|weeks?|w|years?|yrs?|y)?$/i.exec(str);
+
+        if (!match) {
+          return;
+        }
+
+        var n = parseFloat(match[1]);
+        var type = (match[2] || 'ms').toLowerCase();
+
+        switch (type) {
+          case 'years':
+          case 'year':
+          case 'yrs':
+          case 'yr':
+          case 'y':
+            return n * y;
+
+          case 'weeks':
+          case 'week':
+          case 'w':
+            return n * w;
+
+          case 'days':
+          case 'day':
+          case 'd':
+            return n * d;
+
+          case 'hours':
+          case 'hour':
+          case 'hrs':
+          case 'hr':
+          case 'h':
+            return n * h;
+
+          case 'minutes':
+          case 'minute':
+          case 'mins':
+          case 'min':
+          case 'm':
+            return n * m;
+
+          case 'seconds':
+          case 'second':
+          case 'secs':
+          case 'sec':
+          case 's':
+            return n * s;
+
+          case 'milliseconds':
+          case 'millisecond':
+          case 'msecs':
+          case 'msec':
+          case 'ms':
+            return n;
+
+          default:
+            return undefined;
+        }
+      }
+      /**
+       * Short format for `ms`.
+       *
+       * @param {Number} ms
+       * @return {String}
+       * @api private
+       */
+
+
+      function fmtShort(ms) {
+        var msAbs = Math.abs(ms);
+
+        if (msAbs >= d) {
+          return Math.round(ms / d) + 'd';
+        }
+
+        if (msAbs >= h) {
+          return Math.round(ms / h) + 'h';
+        }
+
+        if (msAbs >= m) {
+          return Math.round(ms / m) + 'm';
+        }
+
+        if (msAbs >= s) {
+          return Math.round(ms / s) + 's';
+        }
+
+        return ms + 'ms';
+      }
+      /**
+       * Long format for `ms`.
+       *
+       * @param {Number} ms
+       * @return {String}
+       * @api private
+       */
+
+
+      function fmtLong(ms) {
+        var msAbs = Math.abs(ms);
+
+        if (msAbs >= d) {
+          return plural(ms, msAbs, d, 'day');
+        }
+
+        if (msAbs >= h) {
+          return plural(ms, msAbs, h, 'hour');
+        }
+
+        if (msAbs >= m) {
+          return plural(ms, msAbs, m, 'minute');
+        }
+
+        if (msAbs >= s) {
+          return plural(ms, msAbs, s, 'second');
+        }
+
+        return ms + ' ms';
+      }
+      /**
+       * Pluralization helper.
+       */
+
+
+      function plural(ms, msAbs, n, name) {
+        var isPlural = msAbs >= n * 1.5;
+        return Math.round(ms / n) + ' ' + name + (isPlural ? 's' : '');
+      }
+    }, {}],
+    2: [function (require, module, exports) {
+      // shim for using process in browser
+      var process = module.exports = {}; // cached from whatever global is present so that test runners that stub it
+      // don't break things.  But we need to wrap it in a try catch in case it is
+      // wrapped in strict mode code which doesn't define any globals.  It's inside a
+      // function because try/catches deoptimize in certain engines.
+
+      var cachedSetTimeout;
+      var cachedClearTimeout;
+
+      function defaultSetTimout() {
+        throw new Error('setTimeout has not been defined');
+      }
+
+      function defaultClearTimeout() {
+        throw new Error('clearTimeout has not been defined');
+      }
+
+      (function () {
+        try {
+          if (typeof setTimeout === 'function') {
+            cachedSetTimeout = setTimeout;
+          } else {
+            cachedSetTimeout = defaultSetTimout;
+          }
+        } catch (e) {
+          cachedSetTimeout = defaultSetTimout;
+        }
+
+        try {
+          if (typeof clearTimeout === 'function') {
+            cachedClearTimeout = clearTimeout;
+          } else {
+            cachedClearTimeout = defaultClearTimeout;
+          }
+        } catch (e) {
+          cachedClearTimeout = defaultClearTimeout;
+        }
+      })();
+
+      function runTimeout(fun) {
+        if (cachedSetTimeout === setTimeout) {
+          //normal enviroments in sane situations
+          return setTimeout(fun, 0);
+        } // if setTimeout wasn't available but was latter defined
+
+
+        if ((cachedSetTimeout === defaultSetTimout || !cachedSetTimeout) && setTimeout) {
+          cachedSetTimeout = setTimeout;
+          return setTimeout(fun, 0);
+        }
+
+        try {
+          // when when somebody has screwed with setTimeout but no I.E. maddness
+          return cachedSetTimeout(fun, 0);
+        } catch (e) {
+          try {
+            // When we are in I.E. but the script has been evaled so I.E. doesn't trust the global object when called normally
+            return cachedSetTimeout.call(null, fun, 0);
+          } catch (e) {
+            // same as above but when it's a version of I.E. that must have the global object for 'this', hopfully our context correct otherwise it will throw a global error
+            return cachedSetTimeout.call(this, fun, 0);
+          }
+        }
+      }
+
+      function runClearTimeout(marker) {
+        if (cachedClearTimeout === clearTimeout) {
+          //normal enviroments in sane situations
+          return clearTimeout(marker);
+        } // if clearTimeout wasn't available but was latter defined
+
+
+        if ((cachedClearTimeout === defaultClearTimeout || !cachedClearTimeout) && clearTimeout) {
+          cachedClearTimeout = clearTimeout;
+          return clearTimeout(marker);
+        }
+
+        try {
+          // when when somebody has screwed with setTimeout but no I.E. maddness
+          return cachedClearTimeout(marker);
+        } catch (e) {
+          try {
+            // When we are in I.E. but the script has been evaled so I.E. doesn't  trust the global object when called normally
+            return cachedClearTimeout.call(null, marker);
+          } catch (e) {
+            // same as above but when it's a version of I.E. that must have the global object for 'this', hopfully our context correct otherwise it will throw a global error.
+            // Some versions of I.E. have different rules for clearTimeout vs setTimeout
+            return cachedClearTimeout.call(this, marker);
+          }
+        }
+      }
+
+      var queue = [];
+      var draining = false;
+      var currentQueue;
+      var queueIndex = -1;
+
+      function cleanUpNextTick() {
+        if (!draining || !currentQueue) {
+          return;
+        }
+
+        draining = false;
+
+        if (currentQueue.length) {
+          queue = currentQueue.concat(queue);
+        } else {
+          queueIndex = -1;
+        }
+
+        if (queue.length) {
+          drainQueue();
+        }
+      }
+
+      function drainQueue() {
+        if (draining) {
+          return;
+        }
+
+        var timeout = runTimeout(cleanUpNextTick);
+        draining = true;
+        var len = queue.length;
+
+        while (len) {
+          currentQueue = queue;
+          queue = [];
+
+          while (++queueIndex < len) {
+            if (currentQueue) {
+              currentQueue[queueIndex].run();
+            }
+          }
+
+          queueIndex = -1;
+          len = queue.length;
+        }
+
+        currentQueue = null;
+        draining = false;
+        runClearTimeout(timeout);
+      }
+
+      process.nextTick = function (fun) {
+        var args = new Array(arguments.length - 1);
+
+        if (arguments.length > 1) {
+          for (var i = 1; i < arguments.length; i++) {
+            args[i - 1] = arguments[i];
+          }
+        }
+
+        queue.push(new Item(fun, args));
+
+        if (queue.length === 1 && !draining) {
+          runTimeout(drainQueue);
+        }
+      }; // v8 likes predictible objects
+
+
+      function Item(fun, array) {
+        this.fun = fun;
+        this.array = array;
+      }
+
+      Item.prototype.run = function () {
+        this.fun.apply(null, this.array);
+      };
+
+      process.title = 'browser';
+      process.browser = true;
+      process.env = {};
+      process.argv = [];
+      process.version = ''; // empty string to avoid regexp issues
+
+      process.versions = {};
+
+      function noop() {}
+
+      process.on = noop;
+      process.addListener = noop;
+      process.once = noop;
+      process.off = noop;
+      process.removeListener = noop;
+      process.removeAllListeners = noop;
+      process.emit = noop;
+      process.prependListener = noop;
+      process.prependOnceListener = noop;
+
+      process.listeners = function (name) {
+        return [];
+      };
+
+      process.binding = function (name) {
+        throw new Error('process.binding is not supported');
+      };
+
+      process.cwd = function () {
+        return '/';
+      };
+
+      process.chdir = function (dir) {
+        throw new Error('process.chdir is not supported');
+      };
+
+      process.umask = function () {
+        return 0;
+      };
+    }, {}],
+    3: [function (require, module, exports) {
+      /**
+       * This is the common logic for both the Node.js and web browser
+       * implementations of `debug()`.
+       */
+      function setup(env) {
+        createDebug.debug = createDebug;
+        createDebug.default = createDebug;
+        createDebug.coerce = coerce;
+        createDebug.disable = disable;
+        createDebug.enable = enable;
+        createDebug.enabled = enabled;
+        createDebug.humanize = require('ms');
+        Object.keys(env).forEach(function (key) {
+          createDebug[key] = env[key];
+        });
+        /**
+        * Active `debug` instances.
+        */
+
+        createDebug.instances = [];
+        /**
+        * The currently active debug mode names, and names to skip.
+        */
+
+        createDebug.names = [];
+        createDebug.skips = [];
+        /**
+        * Map of special "%n" handling functions, for the debug "format" argument.
+        *
+        * Valid key names are a single, lower or upper-case letter, i.e. "n" and "N".
+        */
+
+        createDebug.formatters = {};
+        /**
+        * Selects a color for a debug namespace
+        * @param {String} namespace The namespace string for the for the debug instance to be colored
+        * @return {Number|String} An ANSI color code for the given namespace
+        * @api private
+        */
+
+        function selectColor(namespace) {
+          var hash = 0;
+
+          for (var i = 0; i < namespace.length; i++) {
+            hash = (hash << 5) - hash + namespace.charCodeAt(i);
+            hash |= 0; // Convert to 32bit integer
+          }
+
+          return createDebug.colors[Math.abs(hash) % createDebug.colors.length];
+        }
+
+        createDebug.selectColor = selectColor;
+        /**
+        * Create a debugger with the given `namespace`.
+        *
+        * @param {String} namespace
+        * @return {Function}
+        * @api public
+        */
+
+        function createDebug(namespace) {
+          var prevTime;
+
+          function debug() {
+            for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {
+              args[_key] = arguments[_key];
+            }
+
+            // Disabled?
+            if (!debug.enabled) {
+              return;
+            }
+
+            var self = debug; // Set `diff` timestamp
+
+            var curr = Number(new Date());
+            var ms = curr - (prevTime || curr);
+            self.diff = ms;
+            self.prev = prevTime;
+            self.curr = curr;
+            prevTime = curr;
+            args[0] = createDebug.coerce(args[0]);
+
+            if (typeof args[0] !== 'string') {
+              // Anything else let's inspect with %O
+              args.unshift('%O');
+            } // Apply any `formatters` transformations
+
+
+            var index = 0;
+            args[0] = args[0].replace(/%([a-zA-Z%])/g, function (match, format) {
+              // If we encounter an escaped % then don't increase the array index
+              if (match === '%%') {
+                return match;
+              }
+
+              index++;
+              var formatter = createDebug.formatters[format];
+
+              if (typeof formatter === 'function') {
+                var val = args[index];
+                match = formatter.call(self, val); // Now we need to remove `args[index]` since it's inlined in the `format`
+
+                args.splice(index, 1);
+                index--;
+              }
+
+              return match;
+            }); // Apply env-specific formatting (colors, etc.)
+
+            createDebug.formatArgs.call(self, args);
+            var logFn = self.log || createDebug.log;
+            logFn.apply(self, args);
+          }
+
+          debug.namespace = namespace;
+          debug.enabled = createDebug.enabled(namespace);
+          debug.useColors = createDebug.useColors();
+          debug.color = selectColor(namespace);
+          debug.destroy = destroy;
+          debug.extend = extend; // Debug.formatArgs = formatArgs;
+          // debug.rawLog = rawLog;
+          // env-specific initialization logic for debug instances
+
+          if (typeof createDebug.init === 'function') {
+            createDebug.init(debug);
+          }
+
+          createDebug.instances.push(debug);
+          return debug;
+        }
+
+        function destroy() {
+          var index = createDebug.instances.indexOf(this);
+
+          if (index !== -1) {
+            createDebug.instances.splice(index, 1);
+            return true;
+          }
+
+          return false;
+        }
+
+        function extend(namespace, delimiter) {
+          var newDebug = createDebug(this.namespace + (typeof delimiter === 'undefined' ? ':' : delimiter) + namespace);
+          newDebug.log = this.log;
+          return newDebug;
+        }
+        /**
+        * Enables a debug mode by namespaces. This can include modes
+        * separated by a colon and wildcards.
+        *
+        * @param {String} namespaces
+        * @api public
+        */
+
+
+        function enable(namespaces) {
+          createDebug.save(namespaces);
+          createDebug.names = [];
+          createDebug.skips = [];
+          var i;
+          var split = (typeof namespaces === 'string' ? namespaces : '').split(/[\s,]+/);
+          var len = split.length;
+
+          for (i = 0; i < len; i++) {
+            if (!split[i]) {
+              // ignore empty strings
+              continue;
+            }
+
+            namespaces = split[i].replace(/\*/g, '.*?');
+
+            if (namespaces[0] === '-') {
+              createDebug.skips.push(new RegExp('^' + namespaces.substr(1) + '$'));
+            } else {
+              createDebug.names.push(new RegExp('^' + namespaces + '$'));
+            }
+          }
+
+          for (i = 0; i < createDebug.instances.length; i++) {
+            var instance = createDebug.instances[i];
+            instance.enabled = createDebug.enabled(instance.namespace);
+          }
+        }
+        /**
+        * Disable debug output.
+        *
+        * @return {String} namespaces
+        * @api public
+        */
+
+
+        function disable() {
+          var namespaces = [].concat(_toConsumableArray(createDebug.names.map(toNamespace)), _toConsumableArray(createDebug.skips.map(toNamespace).map(function (namespace) {
+            return '-' + namespace;
+          }))).join(',');
+          createDebug.enable('');
+          return namespaces;
+        }
+        /**
+        * Returns true if the given mode name is enabled, false otherwise.
+        *
+        * @param {String} name
+        * @return {Boolean}
+        * @api public
+        */
+
+
+        function enabled(name) {
+          if (name[name.length - 1] === '*') {
+            return true;
+          }
+
+          var i;
+          var len;
+
+          for (i = 0, len = createDebug.skips.length; i < len; i++) {
+            if (createDebug.skips[i].test(name)) {
+              return false;
+            }
+          }
+
+          for (i = 0, len = createDebug.names.length; i < len; i++) {
+            if (createDebug.names[i].test(name)) {
+              return true;
+            }
+          }
+
+          return false;
+        }
+        /**
+        * Convert regexp to namespace
+        *
+        * @param {RegExp} regxep
+        * @return {String} namespace
+        * @api private
+        */
+
+
+        function toNamespace(regexp) {
+          return regexp.toString().substring(2, regexp.toString().length - 2).replace(/\.\*\?$/, '*');
+        }
+        /**
+        * Coerce `val`.
+        *
+        * @param {Mixed} val
+        * @return {Mixed}
+        * @api private
+        */
+
+
+        function coerce(val) {
+          if (val instanceof Error) {
+            return val.stack || val.message;
+          }
+
+          return val;
+        }
+
+        createDebug.enable(createDebug.load());
+        return createDebug;
+      }
+
+      module.exports = setup;
+    }, {
+      "ms": 1
+    }],
+    4: [function (require, module, exports) {
+      (function (process) {
+        /* eslint-env browser */
+
+        /**
+         * This is the web browser implementation of `debug()`.
+         */
+        exports.log = log;
+        exports.formatArgs = formatArgs;
+        exports.save = save;
+        exports.load = load;
+        exports.useColors = useColors;
+        exports.storage = localstorage();
+        /**
+         * Colors.
+         */
+
+        exports.colors = ['#0000CC', '#0000FF', '#0033CC', '#0033FF', '#0066CC', '#0066FF', '#0099CC', '#0099FF', '#00CC00', '#00CC33', '#00CC66', '#00CC99', '#00CCCC', '#00CCFF', '#3300CC', '#3300FF', '#3333CC', '#3333FF', '#3366CC', '#3366FF', '#3399CC', '#3399FF', '#33CC00', '#33CC33', '#33CC66', '#33CC99', '#33CCCC', '#33CCFF', '#6600CC', '#6600FF', '#6633CC', '#6633FF', '#66CC00', '#66CC33', '#9900CC', '#9900FF', '#9933CC', '#9933FF', '#99CC00', '#99CC33', '#CC0000', '#CC0033', '#CC0066', '#CC0099', '#CC00CC', '#CC00FF', '#CC3300', '#CC3333', '#CC3366', '#CC3399', '#CC33CC', '#CC33FF', '#CC6600', '#CC6633', '#CC9900', '#CC9933', '#CCCC00', '#CCCC33', '#FF0000', '#FF0033', '#FF0066', '#FF0099', '#FF00CC', '#FF00FF', '#FF3300', '#FF3333', '#FF3366', '#FF3399', '#FF33CC', '#FF33FF', '#FF6600', '#FF6633', '#FF9900', '#FF9933', '#FFCC00', '#FFCC33'];
+        /**
+         * Currently only WebKit-based Web Inspectors, Firefox >= v31,
+         * and the Firebug extension (any Firefox version) are known
+         * to support "%c" CSS customizations.
+         *
+         * TODO: add a `localStorage` variable to explicitly enable/disable colors
+         */
+        // eslint-disable-next-line complexity
+
+        function useColors() {
+          // NB: In an Electron preload script, document will be defined but not fully
+          // initialized. Since we know we're in Chrome, we'll just detect this case
+          // explicitly
+          if (typeof window !== 'undefined' && window.process && (window.process.type === 'renderer' || window.process.__nwjs)) {
+            return true;
+          } // Internet Explorer and Edge do not support colors.
+
+
+          if (typeof navigator !== 'undefined' && navigator.userAgent && navigator.userAgent.toLowerCase().match(/(edge|trident)\/(\d+)/)) {
+            return false;
+          } // Is webkit? http://stackoverflow.com/a/16459606/376773
+          // document is undefined in react-native: https://github.com/facebook/react-native/pull/1632
+
+
+          return typeof document !== 'undefined' && document.documentElement && document.documentElement.style && document.documentElement.style.WebkitAppearance || // Is firebug? http://stackoverflow.com/a/398120/376773
+          typeof window !== 'undefined' && window.console && (window.console.firebug || window.console.exception && window.console.table) || // Is firefox >= v31?
+          // https://developer.mozilla.org/en-US/docs/Tools/Web_Console#Styling_messages
+          typeof navigator !== 'undefined' && navigator.userAgent && navigator.userAgent.toLowerCase().match(/firefox\/(\d+)/) && parseInt(RegExp.$1, 10) >= 31 || // Double check webkit in userAgent just in case we are in a worker
+          typeof navigator !== 'undefined' && navigator.userAgent && navigator.userAgent.toLowerCase().match(/applewebkit\/(\d+)/);
+        }
+        /**
+         * Colorize log arguments if enabled.
+         *
+         * @api public
+         */
+
+
+        function formatArgs(args) {
+          args[0] = (this.useColors ? '%c' : '') + this.namespace + (this.useColors ? ' %c' : ' ') + args[0] + (this.useColors ? '%c ' : ' ') + '+' + module.exports.humanize(this.diff);
+
+          if (!this.useColors) {
+            return;
+          }
+
+          var c = 'color: ' + this.color;
+          args.splice(1, 0, c, 'color: inherit'); // The final "%c" is somewhat tricky, because there could be other
+          // arguments passed either before or after the %c, so we need to
+          // figure out the correct index to insert the CSS into
+
+          var index = 0;
+          var lastC = 0;
+          args[0].replace(/%[a-zA-Z%]/g, function (match) {
+            if (match === '%%') {
+              return;
+            }
+
+            index++;
+
+            if (match === '%c') {
+              // We only are interested in the *last* %c
+              // (the user may have provided their own)
+              lastC = index;
+            }
+          });
+          args.splice(lastC, 0, c);
+        }
+        /**
+         * Invokes `console.log()` when available.
+         * No-op when `console.log` is not a "function".
+         *
+         * @api public
+         */
+
+
+        function log() {
+          var _console;
+
+          // This hackery is required for IE8/9, where
+          // the `console.log` function doesn't have 'apply'
+          return (typeof console === "undefined" ? "undefined" : _typeof(console)) === 'object' && console.log && (_console = console).log.apply(_console, arguments);
+        }
+        /**
+         * Save `namespaces`.
+         *
+         * @param {String} namespaces
+         * @api private
+         */
+
+
+        function save(namespaces) {
+          try {
+            if (namespaces) {
+              exports.storage.setItem('debug', namespaces);
+            } else {
+              exports.storage.removeItem('debug');
+            }
+          } catch (error) {// Swallow
+            // XXX (@Qix-) should we be logging these?
+          }
+        }
+        /**
+         * Load `namespaces`.
+         *
+         * @return {String} returns the previously persisted debug modes
+         * @api private
+         */
+
+
+        function load() {
+          var r;
+
+          try {
+            r = exports.storage.getItem('debug');
+          } catch (error) {} // Swallow
+          // XXX (@Qix-) should we be logging these?
+          // If debug isn't set in LS, and we're in Electron, try to load $DEBUG
+
+
+          if (!r && typeof process !== 'undefined' && 'env' in process) {
+            r = process.env.DEBUG;
+          }
+
+          return r;
+        }
+        /**
+         * Localstorage attempts to return the localstorage.
+         *
+         * This is necessary because safari throws
+         * when a user disables cookies/localstorage
+         * and you attempt to access it.
+         *
+         * @return {LocalStorage}
+         * @api private
+         */
+
+
+        function localstorage() {
+          try {
+            // TVMLKit (Apple TV JS Runtime) does not have a window object, just localStorage in the global context
+            // The Browser also has localStorage in the global context.
+            return localStorage;
+          } catch (error) {// Swallow
+            // XXX (@Qix-) should we be logging these?
+          }
+        }
+
+        module.exports = require('./common')(exports);
+        var formatters = module.exports.formatters;
+        /**
+         * Map %j to `JSON.stringify()`, since no Web Inspectors do that by default.
+         */
+
+        formatters.j = function (v) {
+          try {
+            return JSON.stringify(v);
+          } catch (error) {
+            return '[UnexpectedJSONParseError]: ' + error.message;
+          }
+        };
+      }).call(this, require('_process'));
+    }, {
+      "./common": 3,
+      "_process": 2
+    }]
+  }, {}, [4])(4);
+});
diff --git a/node_modules/agentkeepalive/node_modules/debug/package.json b/node_modules/agentkeepalive/node_modules/debug/package.json
new file mode 100644
index 000000000..8a9ab5007
--- /dev/null
+++ b/node_modules/agentkeepalive/node_modules/debug/package.json
@@ -0,0 +1,102 @@
+{
+  "_from": "debug@^4.1.0",
+  "_id": "debug@4.1.1",
+  "_inBundle": false,
+  "_integrity": "sha512-pYAIzeRo8J6KPEaJ0VWOh5Pzkbw/RetuzehGM7QRRX5he4fPHx2rdKMB256ehJCkX+XRQm16eZLqLNS8RSZXZw==",
+  "_location": "/agentkeepalive/debug",
+  "_phantomChildren": {},
+  "_requested": {
+    "type": "range",
+    "registry": true,
+    "raw": "debug@^4.1.0",
+    "name": "debug",
+    "escapedName": "debug",
+    "rawSpec": "^4.1.0",
+    "saveSpec": null,
+    "fetchSpec": "^4.1.0"
+  },
+  "_requiredBy": [
+    "/agentkeepalive"
+  ],
+  "_resolved": "https://registry.npmjs.org/debug/-/debug-4.1.1.tgz",
+  "_shasum": "3b72260255109c6b589cee050f1d516139664791",
+  "_spec": "debug@^4.1.0",
+  "_where": "/Users/isaacs/dev/npm/cli/node_modules/agentkeepalive",
+  "author": {
+    "name": "TJ Holowaychuk",
+    "email": "tj@vision-media.ca"
+  },
+  "browser": "./src/browser.js",
+  "bugs": {
+    "url": "https://github.com/visionmedia/debug/issues"
+  },
+  "bundleDependencies": false,
+  "contributors": [
+    {
+      "name": "Nathan Rajlich",
+      "email": "nathan@tootallnate.net",
+      "url": "http://n8.io"
+    },
+    {
+      "name": "Andrew Rhyne",
+      "email": "rhyneandrew@gmail.com"
+    }
+  ],
+  "dependencies": {
+    "ms": "^2.1.1"
+  },
+  "deprecated": false,
+  "description": "small debugging utility",
+  "devDependencies": {
+    "@babel/cli": "^7.0.0",
+    "@babel/core": "^7.0.0",
+    "@babel/preset-env": "^7.0.0",
+    "browserify": "14.4.0",
+    "chai": "^3.5.0",
+    "concurrently": "^3.1.0",
+    "coveralls": "^3.0.2",
+    "istanbul": "^0.4.5",
+    "karma": "^3.0.0",
+    "karma-chai": "^0.1.0",
+    "karma-mocha": "^1.3.0",
+    "karma-phantomjs-launcher": "^1.0.2",
+    "mocha": "^5.2.0",
+    "mocha-lcov-reporter": "^1.2.0",
+    "rimraf": "^2.5.4",
+    "xo": "^0.23.0"
+  },
+  "files": [
+    "src",
+    "dist/debug.js",
+    "LICENSE",
+    "README.md"
+  ],
+  "homepage": "https://github.com/visionmedia/debug#readme",
+  "keywords": [
+    "debug",
+    "log",
+    "debugger"
+  ],
+  "license": "MIT",
+  "main": "./src/index.js",
+  "name": "debug",
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/visionmedia/debug.git"
+  },
+  "scripts": {
+    "build": "npm run build:debug && npm run build:test",
+    "build:debug": "babel -o dist/debug.js dist/debug.es6.js > dist/debug.js",
+    "build:test": "babel -d dist test.js",
+    "clean": "rimraf dist coverage",
+    "lint": "xo",
+    "prebuild:debug": "mkdir -p dist && browserify --standalone debug -o dist/debug.es6.js .",
+    "pretest:browser": "npm run build",
+    "test": "npm run test:node && npm run test:browser",
+    "test:browser": "karma start --single-run",
+    "test:coverage": "cat ./coverage/lcov.info | coveralls",
+    "test:node": "istanbul cover _mocha -- test.js"
+  },
+  "unpkg": "./dist/debug.js",
+  "version": "4.1.1"
+}
diff --git a/node_modules/agentkeepalive/node_modules/debug/src/browser.js b/node_modules/agentkeepalive/node_modules/debug/src/browser.js
new file mode 100644
index 000000000..5f34c0d0a
--- /dev/null
+++ b/node_modules/agentkeepalive/node_modules/debug/src/browser.js
@@ -0,0 +1,264 @@
+/* eslint-env browser */
+
+/**
+ * This is the web browser implementation of `debug()`.
+ */
+
+exports.log = log;
+exports.formatArgs = formatArgs;
+exports.save = save;
+exports.load = load;
+exports.useColors = useColors;
+exports.storage = localstorage();
+
+/**
+ * Colors.
+ */
+
+exports.colors = [
+	'#0000CC',
+	'#0000FF',
+	'#0033CC',
+	'#0033FF',
+	'#0066CC',
+	'#0066FF',
+	'#0099CC',
+	'#0099FF',
+	'#00CC00',
+	'#00CC33',
+	'#00CC66',
+	'#00CC99',
+	'#00CCCC',
+	'#00CCFF',
+	'#3300CC',
+	'#3300FF',
+	'#3333CC',
+	'#3333FF',
+	'#3366CC',
+	'#3366FF',
+	'#3399CC',
+	'#3399FF',
+	'#33CC00',
+	'#33CC33',
+	'#33CC66',
+	'#33CC99',
+	'#33CCCC',
+	'#33CCFF',
+	'#6600CC',
+	'#6600FF',
+	'#6633CC',
+	'#6633FF',
+	'#66CC00',
+	'#66CC33',
+	'#9900CC',
+	'#9900FF',
+	'#9933CC',
+	'#9933FF',
+	'#99CC00',
+	'#99CC33',
+	'#CC0000',
+	'#CC0033',
+	'#CC0066',
+	'#CC0099',
+	'#CC00CC',
+	'#CC00FF',
+	'#CC3300',
+	'#CC3333',
+	'#CC3366',
+	'#CC3399',
+	'#CC33CC',
+	'#CC33FF',
+	'#CC6600',
+	'#CC6633',
+	'#CC9900',
+	'#CC9933',
+	'#CCCC00',
+	'#CCCC33',
+	'#FF0000',
+	'#FF0033',
+	'#FF0066',
+	'#FF0099',
+	'#FF00CC',
+	'#FF00FF',
+	'#FF3300',
+	'#FF3333',
+	'#FF3366',
+	'#FF3399',
+	'#FF33CC',
+	'#FF33FF',
+	'#FF6600',
+	'#FF6633',
+	'#FF9900',
+	'#FF9933',
+	'#FFCC00',
+	'#FFCC33'
+];
+
+/**
+ * Currently only WebKit-based Web Inspectors, Firefox >= v31,
+ * and the Firebug extension (any Firefox version) are known
+ * to support "%c" CSS customizations.
+ *
+ * TODO: add a `localStorage` variable to explicitly enable/disable colors
+ */
+
+// eslint-disable-next-line complexity
+function useColors() {
+	// NB: In an Electron preload script, document will be defined but not fully
+	// initialized. Since we know we're in Chrome, we'll just detect this case
+	// explicitly
+	if (typeof window !== 'undefined' && window.process && (window.process.type === 'renderer' || window.process.__nwjs)) {
+		return true;
+	}
+
+	// Internet Explorer and Edge do not support colors.
+	if (typeof navigator !== 'undefined' && navigator.userAgent && navigator.userAgent.toLowerCase().match(/(edge|trident)\/(\d+)/)) {
+		return false;
+	}
+
+	// Is webkit? http://stackoverflow.com/a/16459606/376773
+	// document is undefined in react-native: https://github.com/facebook/react-native/pull/1632
+	return (typeof document !== 'undefined' && document.documentElement && document.documentElement.style && document.documentElement.style.WebkitAppearance) ||
+		// Is firebug? http://stackoverflow.com/a/398120/376773
+		(typeof window !== 'undefined' && window.console && (window.console.firebug || (window.console.exception && window.console.table))) ||
+		// Is firefox >= v31?
+		// https://developer.mozilla.org/en-US/docs/Tools/Web_Console#Styling_messages
+		(typeof navigator !== 'undefined' && navigator.userAgent && navigator.userAgent.toLowerCase().match(/firefox\/(\d+)/) && parseInt(RegExp.$1, 10) >= 31) ||
+		// Double check webkit in userAgent just in case we are in a worker
+		(typeof navigator !== 'undefined' && navigator.userAgent && navigator.userAgent.toLowerCase().match(/applewebkit\/(\d+)/));
+}
+
+/**
+ * Colorize log arguments if enabled.
+ *
+ * @api public
+ */
+
+function formatArgs(args) {
+	args[0] = (this.useColors ? '%c' : '') +
+		this.namespace +
+		(this.useColors ? ' %c' : ' ') +
+		args[0] +
+		(this.useColors ? '%c ' : ' ') +
+		'+' + module.exports.humanize(this.diff);
+
+	if (!this.useColors) {
+		return;
+	}
+
+	const c = 'color: ' + this.color;
+	args.splice(1, 0, c, 'color: inherit');
+
+	// The final "%c" is somewhat tricky, because there could be other
+	// arguments passed either before or after the %c, so we need to
+	// figure out the correct index to insert the CSS into
+	let index = 0;
+	let lastC = 0;
+	args[0].replace(/%[a-zA-Z%]/g, match => {
+		if (match === '%%') {
+			return;
+		}
+		index++;
+		if (match === '%c') {
+			// We only are interested in the *last* %c
+			// (the user may have provided their own)
+			lastC = index;
+		}
+	});
+
+	args.splice(lastC, 0, c);
+}
+
+/**
+ * Invokes `console.log()` when available.
+ * No-op when `console.log` is not a "function".
+ *
+ * @api public
+ */
+function log(...args) {
+	// This hackery is required for IE8/9, where
+	// the `console.log` function doesn't have 'apply'
+	return typeof console === 'object' &&
+		console.log &&
+		console.log(...args);
+}
+
+/**
+ * Save `namespaces`.
+ *
+ * @param {String} namespaces
+ * @api private
+ */
+function save(namespaces) {
+	try {
+		if (namespaces) {
+			exports.storage.setItem('debug', namespaces);
+		} else {
+			exports.storage.removeItem('debug');
+		}
+	} catch (error) {
+		// Swallow
+		// XXX (@Qix-) should we be logging these?
+	}
+}
+
+/**
+ * Load `namespaces`.
+ *
+ * @return {String} returns the previously persisted debug modes
+ * @api private
+ */
+function load() {
+	let r;
+	try {
+		r = exports.storage.getItem('debug');
+	} catch (error) {
+		// Swallow
+		// XXX (@Qix-) should we be logging these?
+	}
+
+	// If debug isn't set in LS, and we're in Electron, try to load $DEBUG
+	if (!r && typeof process !== 'undefined' && 'env' in process) {
+		r = process.env.DEBUG;
+	}
+
+	return r;
+}
+
+/**
+ * Localstorage attempts to return the localstorage.
+ *
+ * This is necessary because safari throws
+ * when a user disables cookies/localstorage
+ * and you attempt to access it.
+ *
+ * @return {LocalStorage}
+ * @api private
+ */
+
+function localstorage() {
+	try {
+		// TVMLKit (Apple TV JS Runtime) does not have a window object, just localStorage in the global context
+		// The Browser also has localStorage in the global context.
+		return localStorage;
+	} catch (error) {
+		// Swallow
+		// XXX (@Qix-) should we be logging these?
+	}
+}
+
+module.exports = require('./common')(exports);
+
+const {formatters} = module.exports;
+
+/**
+ * Map %j to `JSON.stringify()`, since no Web Inspectors do that by default.
+ */
+
+formatters.j = function (v) {
+	try {
+		return JSON.stringify(v);
+	} catch (error) {
+		return '[UnexpectedJSONParseError]: ' + error.message;
+	}
+};
diff --git a/node_modules/agentkeepalive/node_modules/debug/src/common.js b/node_modules/agentkeepalive/node_modules/debug/src/common.js
new file mode 100644
index 000000000..2f82b8dc7
--- /dev/null
+++ b/node_modules/agentkeepalive/node_modules/debug/src/common.js
@@ -0,0 +1,266 @@
+
+/**
+ * This is the common logic for both the Node.js and web browser
+ * implementations of `debug()`.
+ */
+
+function setup(env) {
+	createDebug.debug = createDebug;
+	createDebug.default = createDebug;
+	createDebug.coerce = coerce;
+	createDebug.disable = disable;
+	createDebug.enable = enable;
+	createDebug.enabled = enabled;
+	createDebug.humanize = require('ms');
+
+	Object.keys(env).forEach(key => {
+		createDebug[key] = env[key];
+	});
+
+	/**
+	* Active `debug` instances.
+	*/
+	createDebug.instances = [];
+
+	/**
+	* The currently active debug mode names, and names to skip.
+	*/
+
+	createDebug.names = [];
+	createDebug.skips = [];
+
+	/**
+	* Map of special "%n" handling functions, for the debug "format" argument.
+	*
+	* Valid key names are a single, lower or upper-case letter, i.e. "n" and "N".
+	*/
+	createDebug.formatters = {};
+
+	/**
+	* Selects a color for a debug namespace
+	* @param {String} namespace The namespace string for the for the debug instance to be colored
+	* @return {Number|String} An ANSI color code for the given namespace
+	* @api private
+	*/
+	function selectColor(namespace) {
+		let hash = 0;
+
+		for (let i = 0; i < namespace.length; i++) {
+			hash = ((hash << 5) - hash) + namespace.charCodeAt(i);
+			hash |= 0; // Convert to 32bit integer
+		}
+
+		return createDebug.colors[Math.abs(hash) % createDebug.colors.length];
+	}
+	createDebug.selectColor = selectColor;
+
+	/**
+	* Create a debugger with the given `namespace`.
+	*
+	* @param {String} namespace
+	* @return {Function}
+	* @api public
+	*/
+	function createDebug(namespace) {
+		let prevTime;
+
+		function debug(...args) {
+			// Disabled?
+			if (!debug.enabled) {
+				return;
+			}
+
+			const self = debug;
+
+			// Set `diff` timestamp
+			const curr = Number(new Date());
+			const ms = curr - (prevTime || curr);
+			self.diff = ms;
+			self.prev = prevTime;
+			self.curr = curr;
+			prevTime = curr;
+
+			args[0] = createDebug.coerce(args[0]);
+
+			if (typeof args[0] !== 'string') {
+				// Anything else let's inspect with %O
+				args.unshift('%O');
+			}
+
+			// Apply any `formatters` transformations
+			let index = 0;
+			args[0] = args[0].replace(/%([a-zA-Z%])/g, (match, format) => {
+				// If we encounter an escaped % then don't increase the array index
+				if (match === '%%') {
+					return match;
+				}
+				index++;
+				const formatter = createDebug.formatters[format];
+				if (typeof formatter === 'function') {
+					const val = args[index];
+					match = formatter.call(self, val);
+
+					// Now we need to remove `args[index]` since it's inlined in the `format`
+					args.splice(index, 1);
+					index--;
+				}
+				return match;
+			});
+
+			// Apply env-specific formatting (colors, etc.)
+			createDebug.formatArgs.call(self, args);
+
+			const logFn = self.log || createDebug.log;
+			logFn.apply(self, args);
+		}
+
+		debug.namespace = namespace;
+		debug.enabled = createDebug.enabled(namespace);
+		debug.useColors = createDebug.useColors();
+		debug.color = selectColor(namespace);
+		debug.destroy = destroy;
+		debug.extend = extend;
+		// Debug.formatArgs = formatArgs;
+		// debug.rawLog = rawLog;
+
+		// env-specific initialization logic for debug instances
+		if (typeof createDebug.init === 'function') {
+			createDebug.init(debug);
+		}
+
+		createDebug.instances.push(debug);
+
+		return debug;
+	}
+
+	function destroy() {
+		const index = createDebug.instances.indexOf(this);
+		if (index !== -1) {
+			createDebug.instances.splice(index, 1);
+			return true;
+		}
+		return false;
+	}
+
+	function extend(namespace, delimiter) {
+		const newDebug = createDebug(this.namespace + (typeof delimiter === 'undefined' ? ':' : delimiter) + namespace);
+		newDebug.log = this.log;
+		return newDebug;
+	}
+
+	/**
+	* Enables a debug mode by namespaces. This can include modes
+	* separated by a colon and wildcards.
+	*
+	* @param {String} namespaces
+	* @api public
+	*/
+	function enable(namespaces) {
+		createDebug.save(namespaces);
+
+		createDebug.names = [];
+		createDebug.skips = [];
+
+		let i;
+		const split = (typeof namespaces === 'string' ? namespaces : '').split(/[\s,]+/);
+		const len = split.length;
+
+		for (i = 0; i < len; i++) {
+			if (!split[i]) {
+				// ignore empty strings
+				continue;
+			}
+
+			namespaces = split[i].replace(/\*/g, '.*?');
+
+			if (namespaces[0] === '-') {
+				createDebug.skips.push(new RegExp('^' + namespaces.substr(1) + '$'));
+			} else {
+				createDebug.names.push(new RegExp('^' + namespaces + '$'));
+			}
+		}
+
+		for (i = 0; i < createDebug.instances.length; i++) {
+			const instance = createDebug.instances[i];
+			instance.enabled = createDebug.enabled(instance.namespace);
+		}
+	}
+
+	/**
+	* Disable debug output.
+	*
+	* @return {String} namespaces
+	* @api public
+	*/
+	function disable() {
+		const namespaces = [
+			...createDebug.names.map(toNamespace),
+			...createDebug.skips.map(toNamespace).map(namespace => '-' + namespace)
+		].join(',');
+		createDebug.enable('');
+		return namespaces;
+	}
+
+	/**
+	* Returns true if the given mode name is enabled, false otherwise.
+	*
+	* @param {String} name
+	* @return {Boolean}
+	* @api public
+	*/
+	function enabled(name) {
+		if (name[name.length - 1] === '*') {
+			return true;
+		}
+
+		let i;
+		let len;
+
+		for (i = 0, len = createDebug.skips.length; i < len; i++) {
+			if (createDebug.skips[i].test(name)) {
+				return false;
+			}
+		}
+
+		for (i = 0, len = createDebug.names.length; i < len; i++) {
+			if (createDebug.names[i].test(name)) {
+				return true;
+			}
+		}
+
+		return false;
+	}
+
+	/**
+	* Convert regexp to namespace
+	*
+	* @param {RegExp} regxep
+	* @return {String} namespace
+	* @api private
+	*/
+	function toNamespace(regexp) {
+		return regexp.toString()
+			.substring(2, regexp.toString().length - 2)
+			.replace(/\.\*\?$/, '*');
+	}
+
+	/**
+	* Coerce `val`.
+	*
+	* @param {Mixed} val
+	* @return {Mixed}
+	* @api private
+	*/
+	function coerce(val) {
+		if (val instanceof Error) {
+			return val.stack || val.message;
+		}
+		return val;
+	}
+
+	createDebug.enable(createDebug.load());
+
+	return createDebug;
+}
+
+module.exports = setup;
diff --git a/node_modules/agentkeepalive/node_modules/debug/src/index.js b/node_modules/agentkeepalive/node_modules/debug/src/index.js
new file mode 100644
index 000000000..bf4c57f25
--- /dev/null
+++ b/node_modules/agentkeepalive/node_modules/debug/src/index.js
@@ -0,0 +1,10 @@
+/**
+ * Detect Electron renderer / nwjs process, which is node, but we should
+ * treat as a browser.
+ */
+
+if (typeof process === 'undefined' || process.type === 'renderer' || process.browser === true || process.__nwjs) {
+	module.exports = require('./browser.js');
+} else {
+	module.exports = require('./node.js');
+}
diff --git a/node_modules/agentkeepalive/node_modules/debug/src/node.js b/node_modules/agentkeepalive/node_modules/debug/src/node.js
new file mode 100644
index 000000000..5e1f1541a
--- /dev/null
+++ b/node_modules/agentkeepalive/node_modules/debug/src/node.js
@@ -0,0 +1,257 @@
+/**
+ * Module dependencies.
+ */
+
+const tty = require('tty');
+const util = require('util');
+
+/**
+ * This is the Node.js implementation of `debug()`.
+ */
+
+exports.init = init;
+exports.log = log;
+exports.formatArgs = formatArgs;
+exports.save = save;
+exports.load = load;
+exports.useColors = useColors;
+
+/**
+ * Colors.
+ */
+
+exports.colors = [6, 2, 3, 4, 5, 1];
+
+try {
+	// Optional dependency (as in, doesn't need to be installed, NOT like optionalDependencies in package.json)
+	// eslint-disable-next-line import/no-extraneous-dependencies
+	const supportsColor = require('supports-color');
+
+	if (supportsColor && (supportsColor.stderr || supportsColor).level >= 2) {
+		exports.colors = [
+			20,
+			21,
+			26,
+			27,
+			32,
+			33,
+			38,
+			39,
+			40,
+			41,
+			42,
+			43,
+			44,
+			45,
+			56,
+			57,
+			62,
+			63,
+			68,
+			69,
+			74,
+			75,
+			76,
+			77,
+			78,
+			79,
+			80,
+			81,
+			92,
+			93,
+			98,
+			99,
+			112,
+			113,
+			128,
+			129,
+			134,
+			135,
+			148,
+			149,
+			160,
+			161,
+			162,
+			163,
+			164,
+			165,
+			166,
+			167,
+			168,
+			169,
+			170,
+			171,
+			172,
+			173,
+			178,
+			179,
+			184,
+			185,
+			196,
+			197,
+			198,
+			199,
+			200,
+			201,
+			202,
+			203,
+			204,
+			205,
+			206,
+			207,
+			208,
+			209,
+			214,
+			215,
+			220,
+			221
+		];
+	}
+} catch (error) {
+	// Swallow - we only care if `supports-color` is available; it doesn't have to be.
+}
+
+/**
+ * Build up the default `inspectOpts` object from the environment variables.
+ *
+ *   $ DEBUG_COLORS=no DEBUG_DEPTH=10 DEBUG_SHOW_HIDDEN=enabled node script.js
+ */
+
+exports.inspectOpts = Object.keys(process.env).filter(key => {
+	return /^debug_/i.test(key);
+}).reduce((obj, key) => {
+	// Camel-case
+	const prop = key
+		.substring(6)
+		.toLowerCase()
+		.replace(/_([a-z])/g, (_, k) => {
+			return k.toUpperCase();
+		});
+
+	// Coerce string value into JS value
+	let val = process.env[key];
+	if (/^(yes|on|true|enabled)$/i.test(val)) {
+		val = true;
+	} else if (/^(no|off|false|disabled)$/i.test(val)) {
+		val = false;
+	} else if (val === 'null') {
+		val = null;
+	} else {
+		val = Number(val);
+	}
+
+	obj[prop] = val;
+	return obj;
+}, {});
+
+/**
+ * Is stdout a TTY? Colored output is enabled when `true`.
+ */
+
+function useColors() {
+	return 'colors' in exports.inspectOpts ?
+		Boolean(exports.inspectOpts.colors) :
+		tty.isatty(process.stderr.fd);
+}
+
+/**
+ * Adds ANSI color escape codes if enabled.
+ *
+ * @api public
+ */
+
+function formatArgs(args) {
+	const {namespace: name, useColors} = this;
+
+	if (useColors) {
+		const c = this.color;
+		const colorCode = '\u001B[3' + (c < 8 ? c : '8;5;' + c);
+		const prefix = `  ${colorCode};1m${name} \u001B[0m`;
+
+		args[0] = prefix + args[0].split('\n').join('\n' + prefix);
+		args.push(colorCode + 'm+' + module.exports.humanize(this.diff) + '\u001B[0m');
+	} else {
+		args[0] = getDate() + name + ' ' + args[0];
+	}
+}
+
+function getDate() {
+	if (exports.inspectOpts.hideDate) {
+		return '';
+	}
+	return new Date().toISOString() + ' ';
+}
+
+/**
+ * Invokes `util.format()` with the specified arguments and writes to stderr.
+ */
+
+function log(...args) {
+	return process.stderr.write(util.format(...args) + '\n');
+}
+
+/**
+ * Save `namespaces`.
+ *
+ * @param {String} namespaces
+ * @api private
+ */
+function save(namespaces) {
+	if (namespaces) {
+		process.env.DEBUG = namespaces;
+	} else {
+		// If you set a process.env field to null or undefined, it gets cast to the
+		// string 'null' or 'undefined'. Just delete instead.
+		delete process.env.DEBUG;
+	}
+}
+
+/**
+ * Load `namespaces`.
+ *
+ * @return {String} returns the previously persisted debug modes
+ * @api private
+ */
+
+function load() {
+	return process.env.DEBUG;
+}
+
+/**
+ * Init logic for `debug` instances.
+ *
+ * Create a new `inspectOpts` object in case `useColors` is set
+ * differently for a particular `debug` instance.
+ */
+
+function init(debug) {
+	debug.inspectOpts = {};
+
+	const keys = Object.keys(exports.inspectOpts);
+	for (let i = 0; i < keys.length; i++) {
+		debug.inspectOpts[keys[i]] = exports.inspectOpts[keys[i]];
+	}
+}
+
+module.exports = require('./common')(exports);
+
+const {formatters} = module.exports;
+
+/**
+ * Map %o to `util.inspect()`, all on a single line.
+ */
+
+formatters.o = function (v) {
+	this.inspectOpts.colors = this.useColors;
+	return util.inspect(v, this.inspectOpts)
+		.replace(/\s*\n\s*/g, ' ');
+};
+
+/**
+ * Map %O to `util.inspect()`, allowing multiple lines if needed.
+ */
+
+formatters.O = function (v) {
+	this.inspectOpts.colors = this.useColors;
+	return util.inspect(v, this.inspectOpts);
+};
diff --git a/node_modules/agentkeepalive/package.json b/node_modules/agentkeepalive/package.json
new file mode 100644
index 000000000..85ba8bb8f
--- /dev/null
+++ b/node_modules/agentkeepalive/package.json
@@ -0,0 +1,98 @@
+{
+  "_from": "agentkeepalive@^4.1.0",
+  "_id": "agentkeepalive@4.1.2",
+  "_inBundle": false,
+  "_integrity": "sha512-waNHE7tQBBn+2qXucI8HY0o2Y0OBPWldWOWsZwY71JcCm4SvrPnWdceFfB5NIXSqE8Ewq6VR/Qt5b1i69P6KCQ==",
+  "_location": "/agentkeepalive",
+  "_phantomChildren": {
+    "ms": "2.1.2"
+  },
+  "_requested": {
+    "type": "range",
+    "registry": true,
+    "raw": "agentkeepalive@^4.1.0",
+    "name": "agentkeepalive",
+    "escapedName": "agentkeepalive",
+    "rawSpec": "^4.1.0",
+    "saveSpec": null,
+    "fetchSpec": "^4.1.0"
+  },
+  "_requiredBy": [
+    "/make-fetch-happen"
+  ],
+  "_resolved": "https://registry.npmjs.org/agentkeepalive/-/agentkeepalive-4.1.2.tgz",
+  "_shasum": "d7bc3bafd7ea88032f6be22b6f1389b3d42c9c91",
+  "_spec": "agentkeepalive@^4.1.0",
+  "_where": "/Users/isaacs/dev/npm/cli/node_modules/make-fetch-happen",
+  "author": {
+    "name": "fengmk2",
+    "email": "fengmk2@gmail.com",
+    "url": "https://fengmk2.com"
+  },
+  "browser": "browser.js",
+  "bugs": {
+    "url": "https://github.com/node-modules/agentkeepalive/issues"
+  },
+  "bundleDependencies": false,
+  "ci": {
+    "type": "github",
+    "os": {
+      "github": "linux"
+    },
+    "version": "8, 10, 12"
+  },
+  "dependencies": {
+    "debug": "^4.1.0",
+    "depd": "^1.1.2",
+    "humanize-ms": "^1.2.1"
+  },
+  "deprecated": false,
+  "description": "Missing keepalive http.Agent",
+  "devDependencies": {
+    "autod": "^3.0.1",
+    "coffee": "^5.3.0",
+    "cross-env": "^6.0.3",
+    "egg-bin": "^4.9.0",
+    "egg-ci": "^1.10.0",
+    "eslint": "^5.7.0",
+    "eslint-config-egg": "^7.1.0",
+    "mm": "^2.4.1",
+    "pedding": "^1.1.0",
+    "typescript": "^3.8.3"
+  },
+  "engines": {
+    "node": ">= 8.0.0"
+  },
+  "files": [
+    "index.js",
+    "index.d.ts",
+    "browser.js",
+    "lib"
+  ],
+  "homepage": "https://github.com/node-modules/agentkeepalive#readme",
+  "keywords": [
+    "http",
+    "https",
+    "agent",
+    "keepalive",
+    "agentkeepalive",
+    "HttpAgent",
+    "HttpsAgent"
+  ],
+  "license": "MIT",
+  "main": "index.js",
+  "name": "agentkeepalive",
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/node-modules/agentkeepalive.git"
+  },
+  "scripts": {
+    "autod": "autod",
+    "ci": "npm run lint && npm run cov",
+    "cov": "cross-env DEBUG=agentkeepalive egg-bin cov --full-trace",
+    "lint": "eslint lib test index.js",
+    "test": "npm run lint && egg-bin test --full-trace",
+    "test-local": "egg-bin test --full-trace"
+  },
+  "version": "4.1.2"
+}
author	isaacs <i@izs.me>	2020-05-05 02:10:27 +0300
committer	isaacs <i@izs.me>	2020-05-08 04:19:16 +0300
commit	873665e2c7f400c5de1962135f2510acc304b599 (patch)
tree	d3d6aa1f9dff7e79cce24be038c651dca8d03bd2 /node_modules/agentkeepalive
parent	e1943aca67223a657557705ecb192bdabb471a47 (diff)