Add files via upload

14 files changed, 1721 insertions, 0 deletions

diff --git a/Libraries external/Firebase/MLVisionTextModel/GoogleToolboxForMac.framework/GoogleToolboxForMac b/Libraries external/Firebase/MLVisionTextModel/GoogleToolboxForMac.framework/GoogleToolboxForMac
new file mode 100644
index 000000000..c632e5c3c
--- /dev/null
+++ b/Libraries external/Firebase/MLVisionTextModel/GoogleToolboxForMac.framework/GoogleToolboxForMac
diff --git a/Libraries external/Firebase/MLVisionTextModel/GoogleToolboxForMac.framework/Headers/GTMDebugSelectorValidation.h b/Libraries external/Firebase/MLVisionTextModel/GoogleToolboxForMac.framework/Headers/GTMDebugSelectorValidation.h
new file mode 100644
index 000000000..c90caeb1f
--- /dev/null
+++ b/Libraries external/Firebase/MLVisionTextModel/GoogleToolboxForMac.framework/Headers/GTMDebugSelectorValidation.h
@@ -0,0 +1,100 @@
+//
+//  GTMDebugSelectorValidation.h
+//
+//  This file should only be included within an implimation file.  In any
+//  function that takes an object and selector to invoke, you should call:
+//
+//    GTMAssertSelectorNilOrImplementedWithArguments(obj, sel, @encode(arg1type), ..., NULL)
+//  or
+//    GTMAssertSelectorNilOrImplementedWithReturnTypeAndArguments(obj, sel, @encode(returnType), @encode(arg1type), ..., NULL)
+//
+//  This will then validate that the selector is defined and using the right
+//  type(s), this can help catch errors much earlier then waiting for the
+//  selector to actually fire (and in the case of error selectors, might never
+//  really be tested until in the field).
+//
+//  Copyright 2007-2008 Google Inc.
+//
+//  Licensed under the Apache License, Version 2.0 (the "License"); you may not
+//  use this file except in compliance with the License.  You may obtain a copy
+//  of the License at
+//
+//  http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+//  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
+//  License for the specific language governing permissions and limitations under
+//  the License.
+//
+
+#if DEBUG
+
+#import <stdarg.h>
+#import "GTMDefines.h"
+
+static void GTMAssertSelectorNilOrImplementedWithReturnTypeAndArguments(id obj, SEL sel, const char *retType, ...) {
+
+  // verify that the object's selector is implemented with the proper
+  // number and type of arguments
+  va_list argList;
+  va_start(argList, retType);
+
+  if (obj && sel) {
+    // check that the selector is implemented
+    _GTMDevAssert([obj respondsToSelector:sel],
+                  @"\"%@\" selector \"%@\" is unimplemented or misnamed",
+                  NSStringFromClass([obj class]),
+                  NSStringFromSelector(sel));
+
+    const char *expectedArgType;
+    NSUInteger argCount = 2; // skip self and _cmd
+    NSMethodSignature *sig = [obj methodSignatureForSelector:sel];
+
+    // check that each expected argument is present and of the correct type
+    while ((expectedArgType = va_arg(argList, const char*)) != 0) {
+
+      if ([sig numberOfArguments] > argCount) {
+        const char *foundArgType = [sig getArgumentTypeAtIndex:argCount];
+
+        _GTMDevAssert(0 == strncmp(foundArgType, expectedArgType, strlen(expectedArgType)),
+                      @"\"%@\" selector \"%@\" argument %u should be type %s",
+                      NSStringFromClass([obj class]),
+                      NSStringFromSelector(sel),
+                      (uint32_t)(argCount - 2),
+                      expectedArgType);
+      }
+      argCount++;
+    }
+
+    // check that the proper number of arguments are present in the selector
+    _GTMDevAssert(argCount == [sig numberOfArguments],
+                  @"\"%@\" selector \"%@\" should have %u arguments",
+                  NSStringFromClass([obj class]),
+                  NSStringFromSelector(sel),
+                  (uint32_t)(argCount - 2));
+
+    // if asked, validate the return type
+    if (retType && (strcmp("gtm_skip_return_test", retType) != 0)) {
+      const char *foundRetType = [sig methodReturnType];
+      _GTMDevAssert(0 == strncmp(foundRetType, retType, strlen(retType)),
+                    @"\"%@\" selector \"%@\" return type should be type %s",
+                    NSStringFromClass([obj class]),
+                    NSStringFromSelector(sel),
+                    retType);
+    }
+  }
+
+  va_end(argList);
+}
+
+#define GTMAssertSelectorNilOrImplementedWithArguments(obj, sel, ...) \
+  GTMAssertSelectorNilOrImplementedWithReturnTypeAndArguments((obj), (sel), "gtm_skip_return_test", __VA_ARGS__)
+
+#else // DEBUG
+
+// make it go away if not debug
+#define GTMAssertSelectorNilOrImplementedWithReturnTypeAndArguments(obj, sel, retType, ...) do { } while (0)
+#define GTMAssertSelectorNilOrImplementedWithArguments(obj, sel, ...) do { } while (0)
+
+#endif // DEBUG
diff --git a/Libraries external/Firebase/MLVisionTextModel/GoogleToolboxForMac.framework/Headers/GTMDebugThreadValidation.h b/Libraries external/Firebase/MLVisionTextModel/GoogleToolboxForMac.framework/Headers/GTMDebugThreadValidation.h
new file mode 100644
index 000000000..8d116d940
--- /dev/null
+++ b/Libraries external/Firebase/MLVisionTextModel/GoogleToolboxForMac.framework/Headers/GTMDebugThreadValidation.h
@@ -0,0 +1,44 @@
+//
+//  GTMDebugThreadValidation.h
+//
+//  Copyright 2016 Google Inc.
+//
+//  Licensed under the Apache License, Version 2.0 (the "License"); you may not
+//  use this file except in compliance with the License.  You may obtain a copy
+//  of the License at
+//
+//  http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+//  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
+//  License for the specific language governing permissions and limitations under
+//  the License.
+//
+
+#import "GTMDefines.h"
+#import <Foundation/Foundation.h>
+
+// GTMCheckCurrentQueue, GTMIsCurrentQueue
+//
+// GTMCheckCurrentQueue takes a target queue and uses _GTMDevAssert to
+// report if that is not the currently executing queue.
+//
+// GTMIsCurrentQueue takes a target queue and returns true if the target queue
+// is the currently executing dispatch queue. This can be passed to another
+// assertion call in debug builds; it should never be used in release code.
+//
+// The dispatch queue must have a label.
+#define GTMCheckCurrentQueue(targetQueue)                    \
+  _GTMDevAssert(GTMIsCurrentQueue(targetQueue),              \
+                @"Current queue is %s (expected %s)",        \
+                _GTMQueueName(DISPATCH_CURRENT_QUEUE_LABEL), \
+                _GTMQueueName(targetQueue))
+
+#define GTMIsCurrentQueue(targetQueue)                 \
+  (strcmp(_GTMQueueName(DISPATCH_CURRENT_QUEUE_LABEL), \
+          _GTMQueueName(targetQueue)) == 0)
+
+#define _GTMQueueName(queue)                     \
+  (strlen(dispatch_queue_get_label(queue)) > 0 ? \
+    dispatch_queue_get_label(queue) : "unnamed")
diff --git a/Libraries external/Firebase/MLVisionTextModel/GoogleToolboxForMac.framework/Headers/GTMDefines.h b/Libraries external/Firebase/MLVisionTextModel/GoogleToolboxForMac.framework/Headers/GTMDefines.h
new file mode 100644
index 000000000..68ff8c0d0
--- /dev/null
+++ b/Libraries external/Firebase/MLVisionTextModel/GoogleToolboxForMac.framework/Headers/GTMDefines.h
@@ -0,0 +1,375 @@
+//
+// GTMDefines.h
+//
+//  Copyright 2008 Google Inc.
+//
+//  Licensed under the Apache License, Version 2.0 (the "License"); you may not
+//  use this file except in compliance with the License.  You may obtain a copy
+//  of the License at
+//
+//  http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+//  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
+//  License for the specific language governing permissions and limitations under
+//  the License.
+//
+
+// ============================================================================
+
+#include <AvailabilityMacros.h>
+#include <TargetConditionals.h>
+
+#ifdef __OBJC__
+#include <Foundation/NSObjCRuntime.h>
+#endif  // __OBJC__
+
+#if TARGET_OS_IPHONE
+#include <Availability.h>
+#endif  // TARGET_OS_IPHONE
+
+// ----------------------------------------------------------------------------
+// CPP symbols that can be overridden in a prefix to control how the toolbox
+// is compiled.
+// ----------------------------------------------------------------------------
+
+
+// By setting the GTM_CONTAINERS_VALIDATION_FAILED_LOG and
+// GTM_CONTAINERS_VALIDATION_FAILED_ASSERT macros you can control what happens
+// when a validation fails. If you implement your own validators, you may want
+// to control their internals using the same macros for consistency.
+#ifndef GTM_CONTAINERS_VALIDATION_FAILED_ASSERT
+  #define GTM_CONTAINERS_VALIDATION_FAILED_ASSERT 0
+#endif
+
+// Ensure __has_feature and __has_extension are safe to use.
+// See http://clang-analyzer.llvm.org/annotations.html
+#ifndef __has_feature      // Optional.
+  #define __has_feature(x) 0 // Compatibility with non-clang compilers.
+#endif
+
+#ifndef __has_extension
+  #define __has_extension __has_feature // Compatibility with pre-3.0 compilers.
+#endif
+
+// Give ourselves a consistent way to do inlines.  Apple's macros even use
+// a few different actual definitions, so we're based off of the foundation
+// one.
+#if !defined(GTM_INLINE)
+  #if (defined (__GNUC__) && (__GNUC__ == 4)) || defined (__clang__)
+    #define GTM_INLINE static __inline__ __attribute__((always_inline))
+  #else
+    #define GTM_INLINE static __inline__
+  #endif
+#endif
+
+// Give ourselves a consistent way of doing externs that links up nicely
+// when mixing objc and objc++
+#if !defined (GTM_EXTERN)
+  #if defined __cplusplus
+    #define GTM_EXTERN extern "C"
+    #define GTM_EXTERN_C_BEGIN extern "C" {
+    #define GTM_EXTERN_C_END }
+  #else
+    #define GTM_EXTERN extern
+    #define GTM_EXTERN_C_BEGIN
+    #define GTM_EXTERN_C_END
+  #endif
+#endif
+
+// Give ourselves a consistent way of exporting things if we have visibility
+// set to hidden.
+#if !defined (GTM_EXPORT)
+  #define GTM_EXPORT __attribute__((visibility("default")))
+#endif
+
+// Give ourselves a consistent way of declaring something as unused. This
+// doesn't use __unused because that is only supported in gcc 4.2 and greater.
+#if !defined (GTM_UNUSED)
+#define GTM_UNUSED(x) ((void)(x))
+#endif
+
+// _GTMDevLog & _GTMDevAssert
+//
+// _GTMDevLog & _GTMDevAssert are meant to be a very lightweight shell for
+// developer level errors.  This implementation simply macros to NSLog/NSAssert.
+// It is not intended to be a general logging/reporting system.
+//
+// Please see http://code.google.com/p/google-toolbox-for-mac/wiki/DevLogNAssert
+// for a little more background on the usage of these macros.
+//
+//    _GTMDevLog           log some error/problem in debug builds
+//    _GTMDevAssert        assert if condition isn't met w/in a method/function
+//                           in all builds.
+//
+// To replace this system, just provide different macro definitions in your
+// prefix header.  Remember, any implementation you provide *must* be thread
+// safe since this could be called by anything in what ever situtation it has
+// been placed in.
+//
+
+// Ignore the "Macro name is a reserved identifier" warning in this section
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wreserved-id-macro"
+
+// We only define the simple macros if nothing else has defined this.
+#ifndef _GTMDevLog
+
+#ifdef DEBUG
+  #define _GTMDevLog(...) NSLog(__VA_ARGS__)
+#else
+  #define _GTMDevLog(...) do { } while (0)
+#endif
+
+#endif // _GTMDevLog
+
+#ifndef _GTMDevAssert
+// we directly invoke the NSAssert handler so we can pass on the varargs
+// (NSAssert doesn't have a macro we can use that takes varargs)
+#if !defined(NS_BLOCK_ASSERTIONS)
+  #define _GTMDevAssert(condition, ...)                                       \
+    do {                                                                      \
+      if (!(condition)) {                                                     \
+        [[NSAssertionHandler currentHandler]                                  \
+            handleFailureInFunction:(NSString *)                              \
+                                        [NSString stringWithUTF8String:__PRETTY_FUNCTION__] \
+                               file:(NSString *)[NSString stringWithUTF8String:__FILE__]  \
+                         lineNumber:__LINE__                                  \
+                        description:__VA_ARGS__];                             \
+      }                                                                       \
+    } while(0)
+#else // !defined(NS_BLOCK_ASSERTIONS)
+  #define _GTMDevAssert(condition, ...) do { } while (0)
+#endif // !defined(NS_BLOCK_ASSERTIONS)
+
+#endif // _GTMDevAssert
+
+// _GTMCompileAssert
+//
+// Note:  Software for current compilers should just use _Static_assert directly
+// instead of this macro.
+//
+// _GTMCompileAssert is an assert that is meant to fire at compile time if you
+// want to check things at compile instead of runtime. For example if you
+// want to check that a wchar is 4 bytes instead of 2 you would use
+// _GTMCompileAssert(sizeof(wchar_t) == 4, wchar_t_is_4_bytes_on_OS_X)
+// Note that the second "arg" is not in quotes, and must be a valid processor
+// symbol in it's own right (no spaces, punctuation etc).
+
+// Wrapping this in an #ifndef allows external groups to define their own
+// compile time assert scheme.
+#ifndef _GTMCompileAssert
+  #if __has_feature(c_static_assert) || __has_extension(c_static_assert)
+    #define _GTMCompileAssert(test, msg) _Static_assert((test), #msg)
+  #else
+    // Pre-Xcode 7 support.
+    //
+    // We got this technique from here:
+    // http://unixjunkie.blogspot.com/2007/10/better-compile-time-asserts_29.html
+    #define _GTMCompileAssertSymbolInner(line, msg) _GTMCOMPILEASSERT ## line ## __ ## msg
+    #define _GTMCompileAssertSymbol(line, msg) _GTMCompileAssertSymbolInner(line, msg)
+    #define _GTMCompileAssert(test, msg) \
+      typedef char _GTMCompileAssertSymbol(__LINE__, msg) [ ((test) ? 1 : -1) ]
+  #endif  // __has_feature(c_static_assert) || __has_extension(c_static_assert)
+#endif // _GTMCompileAssert
+
+#pragma clang diagnostic pop
+
+// ----------------------------------------------------------------------------
+// CPP symbols defined based on the project settings so the GTM code has
+// simple things to test against w/o scattering the knowledge of project
+// setting through all the code.
+// ----------------------------------------------------------------------------
+
+// Provide a single constant CPP symbol that all of GTM uses for ifdefing
+// iPhone code.
+#if TARGET_OS_IPHONE // iPhone SDK
+  // For iPhone specific stuff
+  #define GTM_IPHONE_SDK 1
+  #if TARGET_IPHONE_SIMULATOR
+    #define GTM_IPHONE_DEVICE 0
+    #define GTM_IPHONE_SIMULATOR 1
+  #else
+    #define GTM_IPHONE_DEVICE 1
+    #define GTM_IPHONE_SIMULATOR 0
+  #endif  // TARGET_IPHONE_SIMULATOR
+  // By default, GTM has provided it's own unittesting support, define this
+  // to use the support provided by Xcode, especially for the Xcode4 support
+  // for unittesting.
+  #ifndef GTM_USING_XCTEST
+    #define GTM_USING_XCTEST 0
+  #endif
+  #define GTM_MACOS_SDK 0
+#else
+  // For MacOS specific stuff
+  #define GTM_MACOS_SDK 1
+  #define GTM_IPHONE_SDK 0
+  #define GTM_IPHONE_SIMULATOR 0
+  #define GTM_IPHONE_DEVICE 0
+  #ifndef GTM_USING_XCTEST
+    #define GTM_USING_XCTEST 0
+  #endif
+#endif
+
+// Some of our own availability macros
+#if GTM_MACOS_SDK
+#define GTM_AVAILABLE_ONLY_ON_IPHONE UNAVAILABLE_ATTRIBUTE
+#define GTM_AVAILABLE_ONLY_ON_MACOS
+#else
+#define GTM_AVAILABLE_ONLY_ON_IPHONE
+#define GTM_AVAILABLE_ONLY_ON_MACOS UNAVAILABLE_ATTRIBUTE
+#endif
+
+// GC was dropped by Apple, define the old constant incase anyone still keys
+// off of it.
+#ifndef GTM_SUPPORT_GC
+  #define GTM_SUPPORT_GC 0
+#endif
+
+// Some support for advanced clang static analysis functionality
+#ifndef NS_RETURNS_RETAINED
+  #if __has_feature(attribute_ns_returns_retained)
+    #define NS_RETURNS_RETAINED __attribute__((ns_returns_retained))
+  #else
+    #define NS_RETURNS_RETAINED
+  #endif
+#endif
+
+#ifndef NS_RETURNS_NOT_RETAINED
+  #if __has_feature(attribute_ns_returns_not_retained)
+    #define NS_RETURNS_NOT_RETAINED __attribute__((ns_returns_not_retained))
+  #else
+    #define NS_RETURNS_NOT_RETAINED
+  #endif
+#endif
+
+#ifndef CF_RETURNS_RETAINED
+  #if __has_feature(attribute_cf_returns_retained)
+    #define CF_RETURNS_RETAINED __attribute__((cf_returns_retained))
+  #else
+    #define CF_RETURNS_RETAINED
+  #endif
+#endif
+
+#ifndef CF_RETURNS_NOT_RETAINED
+  #if __has_feature(attribute_cf_returns_not_retained)
+    #define CF_RETURNS_NOT_RETAINED __attribute__((cf_returns_not_retained))
+  #else
+    #define CF_RETURNS_NOT_RETAINED
+  #endif
+#endif
+
+#ifndef NS_CONSUMED
+  #if __has_feature(attribute_ns_consumed)
+    #define NS_CONSUMED __attribute__((ns_consumed))
+  #else
+    #define NS_CONSUMED
+  #endif
+#endif
+
+#ifndef CF_CONSUMED
+  #if __has_feature(attribute_cf_consumed)
+    #define CF_CONSUMED __attribute__((cf_consumed))
+  #else
+    #define CF_CONSUMED
+  #endif
+#endif
+
+#ifndef NS_CONSUMES_SELF
+  #if __has_feature(attribute_ns_consumes_self)
+    #define NS_CONSUMES_SELF __attribute__((ns_consumes_self))
+  #else
+    #define NS_CONSUMES_SELF
+  #endif
+#endif
+
+#ifndef GTM_NONNULL
+  #if defined(__has_attribute)
+    #if __has_attribute(nonnull)
+      #define GTM_NONNULL(x) __attribute__((nonnull x))
+    #else
+      #define GTM_NONNULL(x)
+    #endif
+  #else
+    #define GTM_NONNULL(x)
+  #endif
+#endif
+
+// Invalidates the initializer from which it's called.
+#ifndef GTMInvalidateInitializer
+  #if __has_feature(objc_arc)
+    #define GTMInvalidateInitializer() \
+      do { \
+        [self class]; /* Avoid warning of dead store to |self|. */ \
+        _GTMDevAssert(NO, @"Invalid initializer."); \
+        return nil; \
+      } while (0)
+  #else
+    #define GTMInvalidateInitializer() \
+      do { \
+        [self release]; \
+        _GTMDevAssert(NO, @"Invalid initializer."); \
+        return nil; \
+      } while (0)
+  #endif
+#endif
+
+#ifndef GTMCFAutorelease
+  // GTMCFAutorelease returns an id.  In contrast, Apple's CFAutorelease returns
+  // a CFTypeRef.
+  #if __has_feature(objc_arc)
+    #define GTMCFAutorelease(x) CFBridgingRelease(x)
+  #else
+    #define GTMCFAutorelease(x) ([(id)x autorelease])
+  #endif
+#endif
+
+#ifdef __OBJC__
+
+
+// Macro to allow you to create NSStrings out of other macros.
+// #define FOO foo
+// NSString *fooString = GTM_NSSTRINGIFY(FOO);
+#if !defined (GTM_NSSTRINGIFY)
+  #define GTM_NSSTRINGIFY_INNER(x) @#x
+  #define GTM_NSSTRINGIFY(x) GTM_NSSTRINGIFY_INNER(x)
+#endif
+
+// ============================================================================
+
+// GTM_SEL_STRING is for specifying selector (usually property) names to KVC
+// or KVO methods.
+// In debug it will generate warnings for undeclared selectors if
+// -Wunknown-selector is turned on.
+// In release it will have no runtime overhead.
+#ifndef GTM_SEL_STRING
+  #ifdef DEBUG
+    #define GTM_SEL_STRING(selName) NSStringFromSelector(@selector(selName))
+  #else
+    #define GTM_SEL_STRING(selName) @#selName
+  #endif  // DEBUG
+#endif  // GTM_SEL_STRING
+
+#ifndef GTM_WEAK
+#if __has_feature(objc_arc_weak)
+    // With ARC enabled, __weak means a reference that isn't implicitly
+    // retained.  __weak objects are accessed through runtime functions, so
+    // they are zeroed out, but this requires OS X 10.7+.
+    // At clang r251041+, ARC-style zeroing weak references even work in
+    // non-ARC mode.
+    #define GTM_WEAK __weak
+  #elif __has_feature(objc_arc)
+    // ARC, but targeting 10.6 or older, where zeroing weak references don't
+    // exist.
+    #define GTM_WEAK __unsafe_unretained
+  #else
+    // With manual reference counting, __weak used to be silently ignored.
+    // clang r251041 gives it the ARC semantics instead.  This means they
+    // now require a deployment target of 10.7, while some clients of GTM
+    // still target 10.6.  In these cases, expand to __unsafe_unretained instead
+    #define GTM_WEAK
+  #endif
+#endif
+
+#endif  // __OBJC__
diff --git a/Libraries external/Firebase/MLVisionTextModel/GoogleToolboxForMac.framework/Headers/GTMLocalizedString.h b/Libraries external/Firebase/MLVisionTextModel/GoogleToolboxForMac.framework/Headers/GTMLocalizedString.h
new file mode 100644
index 000000000..c49b8a9da
--- /dev/null
+++ b/Libraries external/Firebase/MLVisionTextModel/GoogleToolboxForMac.framework/Headers/GTMLocalizedString.h
@@ -0,0 +1,79 @@
+//
+//  GTMLocalizedString.h
+//
+//  Copyright (c) 2010 Google Inc. All rights reserved.
+//
+//  Licensed under the Apache License, Version 2.0 (the "License"); you may not
+//  use this file except in compliance with the License.  You may obtain a copy
+//  of the License at
+//
+//  http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+//  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
+//  License for the specific language governing permissions and limitations under
+//  the License.
+//
+
+#import <Foundation/Foundation.h>
+#import "GTMDefines.h"
+
+// The NSLocalizedString macros do not have NS_FORMAT_ARGUMENT modifiers put
+// on them which means you get warnings on Snow Leopard with when
+// GCC_WARN_TYPECHECK_CALLS_TO_PRINTF = YES and you do things like:
+// NSString *foo
+//   = [NSString stringWithFormat:NSLocalizedString(@"blah %@", nil), @"bar"];
+// The GTMLocalizedString functions fix that for you so you can do:
+// NSString *foo
+//   = [NSString stringWithFormat:GTMLocalizedString(@"blah %@", nil), @"bar"];
+// and you will compile cleanly.
+// If you use genstrings you can call it with
+// genstrings -s GTMLocalizedString ...
+// and it should work as expected.
+// You can override how GTM gets its localized strings (if you are using
+// something other than NSLocalizedString) by redefining
+// GTMLocalizedStringWithDefaultValueInternal.
+
+#ifndef GTMLocalizedStringWithDefaultValueInternal
+  #define GTMLocalizedStringWithDefaultValueInternal \
+      NSLocalizedStringWithDefaultValue
+#endif
+
+GTM_INLINE NS_FORMAT_ARGUMENT(1) NSString *GTMLocalizedString(
+    NSString *key,  NSString *comment) {
+  return GTMLocalizedStringWithDefaultValueInternal(key,
+                                                    nil,
+                                                    [NSBundle mainBundle],
+                                                    @"",
+                                                    comment);
+}
+
+GTM_INLINE NS_FORMAT_ARGUMENT(1) NSString *GTMLocalizedStringFromTable(
+    NSString *key, NSString *tableName, NSString *comment) {
+  return GTMLocalizedStringWithDefaultValueInternal(key,
+                                                    tableName,
+                                                    [NSBundle mainBundle],
+                                                    @"",
+                                                    comment);
+}
+
+GTM_INLINE NS_FORMAT_ARGUMENT(1) NSString *GTMLocalizedStringFromTableInBundle(
+    NSString *key,  NSString *tableName, NSBundle *bundle, NSString *comment) {
+  return GTMLocalizedStringWithDefaultValueInternal(key,
+                                                    tableName,
+                                                    bundle,
+                                                    @"",
+                                                    comment);
+}
+
+GTM_INLINE NS_FORMAT_ARGUMENT(1) NSString *GTMLocalizedStringWithDefaultValue(
+    NSString *key, NSString *tableName, NSBundle *bundle, NSString *value,
+    NSString *comment) {
+  return GTMLocalizedStringWithDefaultValueInternal(key,
+                                                    tableName,
+                                                    bundle,
+                                                    value,
+                                                    comment);
+}
+
diff --git a/Libraries external/Firebase/MLVisionTextModel/GoogleToolboxForMac.framework/Headers/GTMLogger.h b/Libraries external/Firebase/MLVisionTextModel/GoogleToolboxForMac.framework/Headers/GTMLogger.h
new file mode 100644
index 000000000..16f0eafb9
--- /dev/null
+++ b/Libraries external/Firebase/MLVisionTextModel/GoogleToolboxForMac.framework/Headers/GTMLogger.h
@@ -0,0 +1,508 @@
+//
+//  GTMLogger.h
+//
+//  Copyright 2007-2008 Google Inc.
+//
+//  Licensed under the Apache License, Version 2.0 (the "License"); you may not
+//  use this file except in compliance with the License.  You may obtain a copy
+//  of the License at
+//
+//  http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+//  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
+//  License for the specific language governing permissions and limitations under
+//  the License.
+//
+
+// Key Abstractions
+// ----------------
+//
+// This file declares multiple classes and protocols that are used by the
+// GTMLogger logging system. The 4 main abstractions used in this file are the
+// following:
+//
+//   * logger (GTMLogger) - The main logging class that users interact with. It
+//   has methods for logging at different levels and uses a log writer, a log
+//   formatter, and a log filter to get the job done.
+//
+//   * log writer (GTMLogWriter) - Writes a given string to some log file, where
+//   a "log file" can be a physical file on disk, a POST over HTTP to some URL,
+//   or even some in-memory structure (e.g., a ring buffer).
+//
+//   * log formatter (GTMLogFormatter) - Given a format string and arguments as
+//   a va_list, returns a single formatted NSString. A "formatted string" could
+//   be a string with the date prepended, a string with values in a CSV format,
+//   or even a string of XML.
+//
+//   * log filter (GTMLogFilter) - Given a formatted log message as an NSString
+//   and the level at which the message is to be logged, this class will decide
+//   whether the given message should be logged or not. This is a flexible way
+//   to filter out messages logged at a certain level, messages that contain
+//   certain text, or filter nothing out at all. This gives the caller the
+//   flexibility to dynamically enable debug logging in Release builds.
+//
+// This file also declares some classes to handle the common log writer, log
+// formatter, and log filter cases. Callers can also create their own writers,
+// formatters, and filters and they can even build them on top of the ones
+// declared here. Keep in mind that your custom writer/formatter/filter may be
+// called from multiple threads, so it must be thread-safe.
+
+#import <Foundation/Foundation.h>
+#import "GTMDefines.h"
+
+// Predeclaration of used protocols that are declared later in this file.
+@protocol GTMLogWriter, GTMLogFormatter, GTMLogFilter;
+
+// GTMLogger
+//
+// GTMLogger is the primary user-facing class for an object-oriented logging
+// system. It is built on the concept of log formatters (GTMLogFormatter), log
+// writers (GTMLogWriter), and log filters (GTMLogFilter). When a message is
+// sent to a GTMLogger to log a message, the message is formatted using the log
+// formatter, then the log filter is consulted to see if the message should be
+// logged, and if so, the message is sent to the log writer to be written out.
+//
+// GTMLogger is intended to be a flexible and thread-safe logging solution. Its
+// flexibility comes from the fact that GTMLogger instances can be customized
+// with user defined formatters, filters, and writers. And these writers,
+// filters, and formatters can be combined, stacked, and customized in arbitrary
+// ways to suit the needs at hand. For example, multiple writers can be used at
+// the same time, and a GTMLogger instance can even be used as another
+// GTMLogger's writer. This allows for arbitrarily deep logging trees.
+//
+// A standard GTMLogger uses a writer that sends messages to standard out, a
+// formatter that smacks a timestamp and a few other bits of interesting
+// information on the message, and a filter that filters out debug messages from
+// release builds. Using the standard log settings, a log message will look like
+// the following:
+//
+//   2007-12-30 10:29:24.177 myapp[4588/0xa07d0f60] [lvl=1] foo=<Foo: 0x123>
+//
+// The output contains the date and time of the log message, the name of the
+// process followed by its process ID/thread ID, the log level at which the
+// message was logged (in the previous example the level was 1:
+// kGTMLoggerLevelDebug), and finally, the user-specified log message itself (in
+// this case, the log message was @"foo=%@", foo).
+//
+// Multiple instances of GTMLogger can be created, each configured their own
+// way.  Though GTMLogger is not a singleton (in the GoF sense), it does provide
+// access to a shared (i.e., globally accessible) GTMLogger instance. This makes
+// it convenient for all code in a process to use the same GTMLogger instance.
+// The shared GTMLogger instance can also be configured in an arbitrary, and
+// these configuration changes will affect all code that logs through the shared
+// instance.
+
+//
+// Log Levels
+// ----------
+// GTMLogger has 3 different log levels: Debug, Info, and Error. GTMLogger
+// doesn't take any special action based on the log level; it simply forwards
+// this information on to formatters, filters, and writers, each of which may
+// optionally take action based on the level. Since log level filtering is
+// performed at runtime, log messages are typically not filtered out at compile
+// time.  The exception to this rule is that calls to the GTMLoggerDebug() macro
+// *ARE* filtered out of non-DEBUG builds. This is to be backwards compatible
+// with behavior that many developers are currently used to. Note that this
+// means that GTMLoggerDebug(@"hi") will be compiled out of Release builds, but
+// [[GTMLogger sharedLogger] logDebug:@"hi"] will NOT be compiled out.
+//
+// Standard loggers are created with the GTMLogLevelFilter log filter, which
+// filters out certain log messages based on log level, and some other settings.
+//
+// In addition to the -logDebug:, -logInfo:, and -logError: methods defined on
+// GTMLogger itself, there are also C macros that make usage of the shared
+// GTMLogger instance very convenient. These macros are:
+//
+//   GTMLoggerDebug(...)
+//   GTMLoggerInfo(...)
+//   GTMLoggerError(...)
+//
+// Again, a notable feature of these macros is that GTMLogDebug() calls *will be
+// compiled out of non-DEBUG builds*.
+//
+// Standard Loggers
+// ----------------
+// GTMLogger has the concept of "standard loggers". A standard logger is simply
+// a logger that is pre-configured with some standard/common writer, formatter,
+// and filter combination. Standard loggers are created using the creation
+// methods beginning with "standard". The alternative to a standard logger is a
+// regular logger, which will send messages to stdout, with no special
+// formatting, and no filtering.
+//
+// How do I use GTMLogger?
+// ----------------------
+// The typical way you will want to use GTMLogger is to simply use the
+// GTMLogger*() macros for logging from code. That way we can easily make
+// changes to the GTMLogger class and simply update the macros accordingly. Only
+// your application startup code (perhaps, somewhere in main()) should use the
+// GTMLogger class directly in order to configure the shared logger, which all
+// of the code using the macros will be using. Again, this is just the typical
+// situation.
+//
+// To be complete, there are cases where you may want to use GTMLogger directly,
+// or even create separate GTMLogger instances for some reason. That's fine,
+// too.
+//
+// Examples
+// --------
+// The following show some common GTMLogger use cases.
+//
+// 1. You want to log something as simply as possible. Also, this call will only
+//    appear in debug builds. In non-DEBUG builds it will be completely removed.
+//
+//      GTMLoggerDebug(@"foo = %@", foo);
+//
+// 2. The previous example is similar to the following. The major difference is
+//    that the previous call (example 1) will be compiled out of Release builds
+//    but this statement will not be compiled out.
+//
+//      [[GTMLogger sharedLogger] logDebug:@"foo = %@", foo];
+//
+// 3. Send all logging output from the shared logger to a file. We do this by
+//    creating an NSFileHandle for writing associated with a file, and setting
+//    that file handle as the logger's writer.
+//
+//      NSFileHandle *f = [NSFileHandle fileHandleForWritingAtPath:@"/tmp/f.log"
+//                                                          create:YES];
+//      [[GTMLogger sharedLogger] setWriter:f];
+//      GTMLoggerError(@"hi");  // This will be sent to /tmp/f.log
+//
+// 4. Create a new GTMLogger that will log to a file. This example differs from
+//    the previous one because here we create a new GTMLogger that is different
+//    from the shared logger.
+//
+//      GTMLogger *logger = [GTMLogger standardLoggerWithPath:@"/tmp/temp.log"];
+//      [logger logInfo:@"hi temp log file"];
+//
+// 5. Create a logger that writes to stdout and does NOT do any formatting to
+//    the log message. This might be useful, for example, when writing a help
+//    screen for a command-line tool to standard output.
+//
+//      GTMLogger *logger = [GTMLogger logger];
+//      [logger logInfo:@"%@ version 0.1 usage", progName];
+//
+// 6. Send log output to stdout AND to a log file. The trick here is that
+//    NSArrays function as composite log writers, which means when an array is
+//    set as the log writer, it forwards all logging messages to all of its
+//    contained GTMLogWriters.
+//
+//      // Create array of GTMLogWriters
+//      NSArray *writers = [NSArray arrayWithObjects:
+//          [NSFileHandle fileHandleForWritingAtPath:@"/tmp/f.log" create:YES],
+//          [NSFileHandle fileHandleWithStandardOutput], nil];
+//
+//      GTMLogger *logger = [GTMLogger standardLogger];
+//      [logger setWriter:writers];
+//      [logger logInfo:@"hi"];  // Output goes to stdout and /tmp/f.log
+//
+// For futher details on log writers, formatters, and filters, see the
+// documentation below.
+//
+// NOTE: GTMLogger is application level logging.  By default it does nothing
+// with _GTMDevLog/_GTMDevAssert (see GTMDefines.h).  An application can choose
+// to bridge _GTMDevLog/_GTMDevAssert to GTMLogger by providing macro
+// definitions in its prefix header (see GTMDefines.h for how one would do
+// that).
+//
+@interface GTMLogger : NSObject {
+ @private
+  id<GTMLogWriter> writer_;
+  id<GTMLogFormatter> formatter_;
+  id<GTMLogFilter> filter_;
+}
+
+//
+// Accessors for the shared logger instance
+//
+
+// Returns a shared/global standard GTMLogger instance. Callers should typically
+// use this method to get a GTMLogger instance, unless they explicitly want
+// their own instance to configure for their own needs. This is the only method
+// that returns a shared instance; all the rest return new GTMLogger instances.
++ (id)sharedLogger;
+
+// Sets the shared logger instance to |logger|. Future calls to +sharedLogger
+// will return |logger| instead.
++ (void)setSharedLogger:(GTMLogger *)logger;
+
+//
+// Creation methods
+//
+
+// Returns a new autoreleased GTMLogger instance that will log to stdout, using
+// the GTMLogStandardFormatter, and the GTMLogLevelFilter filter.
++ (id)standardLogger;
+
+// Same as +standardLogger, but logs to stderr.
++ (id)standardLoggerWithStderr;
+
+// Same as +standardLogger but levels >= kGTMLoggerLevelError are routed to
+// stderr, everything else goes to stdout.
++ (id)standardLoggerWithStdoutAndStderr;
+
+// Returns a new standard GTMLogger instance with a log writer that will
+// write to the file at |path|, and will use the GTMLogStandardFormatter and
+// GTMLogLevelFilter classes. If |path| does not exist, it will be created.
++ (id)standardLoggerWithPath:(NSString *)path;
+
+// Returns an autoreleased GTMLogger instance that will use the specified
+// |writer|, |formatter|, and |filter|.
++ (id)loggerWithWriter:(id<GTMLogWriter>)writer
+             formatter:(id<GTMLogFormatter>)formatter
+                filter:(id<GTMLogFilter>)filter;
+
+// Returns an autoreleased GTMLogger instance that logs to stdout, with the
+// basic formatter, and no filter. The returned logger differs from the logger
+// returned by +standardLogger because this one does not do any filtering and
+// does not do any special log formatting; this is the difference between a
+// "regular" logger and a "standard" logger.
++ (id)logger;
+
+// Designated initializer. This method returns a GTMLogger initialized with the
+// specified |writer|, |formatter|, and |filter|. See the setter methods below
+// for what values will be used if nil is passed for a parameter.
+- (id)initWithWriter:(id<GTMLogWriter>)writer
+           formatter:(id<GTMLogFormatter>)formatter
+              filter:(id<GTMLogFilter>)filter;
+
+//
+// Logging  methods
+//
+
+// Logs a message at the debug level (kGTMLoggerLevelDebug).
+- (void)logDebug:(NSString *)fmt, ... NS_FORMAT_FUNCTION(1, 2);
+// Logs a message at the info level (kGTMLoggerLevelInfo).
+- (void)logInfo:(NSString *)fmt, ... NS_FORMAT_FUNCTION(1, 2);
+// Logs a message at the error level (kGTMLoggerLevelError).
+- (void)logError:(NSString *)fmt, ... NS_FORMAT_FUNCTION(1, 2);
+// Logs a message at the assert level (kGTMLoggerLevelAssert).
+- (void)logAssert:(NSString *)fmt, ... NS_FORMAT_FUNCTION(1, 2);
+
+
+//
+// Accessors
+//
+
+// Accessor methods for the log writer. If the log writer is set to nil,
+// [NSFileHandle fileHandleWithStandardOutput] is used.
+- (id<GTMLogWriter>)writer;
+- (void)setWriter:(id<GTMLogWriter>)writer;
+
+// Accessor methods for the log formatter. If the log formatter is set to nil,
+// GTMLogBasicFormatter is used. This formatter will format log messages in a
+// plain printf style.
+- (id<GTMLogFormatter>)formatter;
+- (void)setFormatter:(id<GTMLogFormatter>)formatter;
+
+// Accessor methods for the log filter. If the log filter is set to nil,
+// GTMLogNoFilter is used, which allows all log messages through.
+- (id<GTMLogFilter>)filter;
+- (void)setFilter:(id<GTMLogFilter>)filter;
+
+@end  // GTMLogger
+
+
+// Helper functions that are used by the convenience GTMLogger*() macros that
+// enable the logging of function names.
+@interface GTMLogger (GTMLoggerMacroHelpers)
+- (void)logFuncDebug:(const char *)func msg:(NSString *)fmt, ...
+  NS_FORMAT_FUNCTION(2, 3);
+- (void)logFuncInfo:(const char *)func msg:(NSString *)fmt, ...
+  NS_FORMAT_FUNCTION(2, 3);
+- (void)logFuncError:(const char *)func msg:(NSString *)fmt, ...
+  NS_FORMAT_FUNCTION(2, 3);
+- (void)logFuncAssert:(const char *)func msg:(NSString *)fmt, ...
+  NS_FORMAT_FUNCTION(2, 3);
+@end  // GTMLoggerMacroHelpers
+
+
+// The convenience macros are only defined if they haven't already been defined.
+#ifndef GTMLoggerInfo
+
+// Convenience macros that log to the shared GTMLogger instance. These macros
+// are how users should typically log to GTMLogger. Notice that GTMLoggerDebug()
+// calls will be compiled out of non-Debug builds.
+#define GTMLoggerDebug(...)  \
+  [[GTMLogger sharedLogger] logFuncDebug:__func__ msg:__VA_ARGS__]
+#define GTMLoggerInfo(...)   \
+  [[GTMLogger sharedLogger] logFuncInfo:__func__ msg:__VA_ARGS__]
+#define GTMLoggerError(...)  \
+  [[GTMLogger sharedLogger] logFuncError:__func__ msg:__VA_ARGS__]
+#define GTMLoggerAssert(...) \
+  [[GTMLogger sharedLogger] logFuncAssert:__func__ msg:__VA_ARGS__]
+
+// If we're not in a debug build, remove the GTMLoggerDebug statements. This
+// makes calls to GTMLoggerDebug "compile out" of Release builds
+#ifndef DEBUG
+#undef GTMLoggerDebug
+#define GTMLoggerDebug(...) do {} while(0)
+#endif
+
+#endif  // !defined(GTMLoggerInfo)
+
+// Log levels.
+typedef enum {
+  kGTMLoggerLevelUnknown,
+  kGTMLoggerLevelDebug,
+  kGTMLoggerLevelInfo,
+  kGTMLoggerLevelError,
+  kGTMLoggerLevelAssert,
+} GTMLoggerLevel;
+
+
+//
+//   Log Writers
+//
+
+// Protocol to be implemented by a GTMLogWriter instance.
+@protocol GTMLogWriter <NSObject>
+// Writes the given log message to where the log writer is configured to write.
+- (void)logMessage:(NSString *)msg level:(GTMLoggerLevel)level;
+@end  // GTMLogWriter
+
+
+// Simple category on NSFileHandle that makes NSFileHandles valid log writers.
+// This is convenient because something like, say, +fileHandleWithStandardError
+// now becomes a valid log writer. Log messages are written to the file handle
+// with a newline appended.
+@interface NSFileHandle (GTMFileHandleLogWriter) <GTMLogWriter>
+// Opens the file at |path| in append mode, and creates the file with |mode|
+// if it didn't previously exist.
++ (id)fileHandleForLoggingAtPath:(NSString *)path mode:(mode_t)mode;
+@end  // NSFileHandle
+
+
+// This category makes NSArray a GTMLogWriter that can be composed of other
+// GTMLogWriters. This is the classic Composite GoF design pattern. When the
+// GTMLogWriter -logMessage:level: message is sent to the array, the array
+// forwards the message to all of its elements that implement the GTMLogWriter
+// protocol.
+//
+// This is useful in situations where you would like to send log output to
+// multiple log writers at the same time. Simply create an NSArray of the log
+// writers you wish to use, then set the array as the "writer" for your
+// GTMLogger instance.
+@interface NSArray (GTMArrayCompositeLogWriter) <GTMLogWriter>
+@end  // GTMArrayCompositeLogWriter
+
+
+// This category adapts the GTMLogger interface so that it can be used as a log
+// writer; it's an "adapter" in the GoF Adapter pattern sense.
+//
+// This is useful when you want to configure a logger to log to a specific
+// writer with a specific formatter and/or filter. But you want to also compose
+// that with a different log writer that may have its own formatter and/or
+// filter.
+@interface GTMLogger (GTMLoggerLogWriter) <GTMLogWriter>
+@end  // GTMLoggerLogWriter
+
+
+//
+//   Log Formatters
+//
+
+// Protocol to be implemented by a GTMLogFormatter instance.
+@protocol GTMLogFormatter <NSObject>
+// Returns a formatted string using the format specified in |fmt| and the va
+// args specified in |args|.
+- (NSString *)stringForFunc:(NSString *)func
+                 withFormat:(NSString *)fmt
+                     valist:(va_list)args
+                      level:(GTMLoggerLevel)level NS_FORMAT_FUNCTION(2, 0);
+@end  // GTMLogFormatter
+
+
+// A basic log formatter that formats a string the same way that NSLog (or
+// printf) would. It does not do anything fancy, nor does it add any data of its
+// own.
+@interface GTMLogBasicFormatter : NSObject <GTMLogFormatter>
+
+// Helper method for prettying C99 __func__ and GCC __PRETTY_FUNCTION__
+- (NSString *)prettyNameForFunc:(NSString *)func;
+
+@end  // GTMLogBasicFormatter
+
+
+// A log formatter that formats the log string like the basic formatter, but
+// also prepends a timestamp and some basic process info to the message, as
+// shown in the following sample output.
+//   2007-12-30 10:29:24.177 myapp[4588/0xa07d0f60] [lvl=1] log mesage here
+@interface GTMLogStandardFormatter : GTMLogBasicFormatter {
+ @private
+  NSDateFormatter *dateFormatter_;  // yyyy-MM-dd HH:mm:ss.SSS
+  NSString *pname_;
+  pid_t pid_;
+}
+@end  // GTMLogStandardFormatter
+
+
+//
+//   Log Filters
+//
+
+// Protocol to be implemented by a GTMLogFilter instance.
+@protocol GTMLogFilter <NSObject>
+// Returns YES if |msg| at |level| should be logged; NO otherwise.
+- (BOOL)filterAllowsMessage:(NSString *)msg level:(GTMLoggerLevel)level;
+@end  // GTMLogFilter
+
+
+// A log filter that filters messages at the kGTMLoggerLevelDebug level out of
+// non-debug builds. Messages at the kGTMLoggerLevelInfo level are also filtered
+// out of non-debug builds unless GTMVerboseLogging is set in the environment or
+// the processes's defaults. Messages at the kGTMLoggerLevelError level are
+// never filtered.
+@interface GTMLogLevelFilter : NSObject <GTMLogFilter> {
+ @private
+  BOOL verboseLoggingEnabled_;
+  NSUserDefaults *userDefaults_;
+}
+@end  // GTMLogLevelFilter
+
+// A simple log filter that does NOT filter anything out;
+// -filterAllowsMessage:level will always return YES. This can be a convenient
+// way to enable debug-level logging in release builds (if you so desire).
+@interface GTMLogNoFilter : NSObject <GTMLogFilter>
+@end  // GTMLogNoFilter
+
+
+// Base class for custom level filters. Not for direct use, use the minimum
+// or maximum level subclasses below.
+@interface GTMLogAllowedLevelFilter : NSObject <GTMLogFilter> {
+ @private
+  NSIndexSet *allowedLevels_;
+}
+@end
+
+// A log filter that allows you to set a minimum log level. Messages below this
+// level will be filtered.
+@interface GTMLogMininumLevelFilter : GTMLogAllowedLevelFilter
+
+// Designated initializer, logs at levels < |level| will be filtered.
+- (id)initWithMinimumLevel:(GTMLoggerLevel)level;
+
+@end
+
+// A log filter that allows you to set a maximum log level. Messages whose level
+// exceeds this level will be filtered. This is really only useful if you have
+// a composite GTMLogger that is sending the other messages elsewhere.
+@interface GTMLogMaximumLevelFilter : GTMLogAllowedLevelFilter
+
+// Designated initializer, logs at levels > |level| will be filtered.
+- (id)initWithMaximumLevel:(GTMLoggerLevel)level;
+
+@end
+
+
+// For subclasses only
+@interface GTMLogger (PrivateMethods)
+
+- (void)logInternalFunc:(const char *)func
+                 format:(NSString *)fmt
+                 valist:(va_list)args
+                  level:(GTMLoggerLevel)level NS_FORMAT_FUNCTION(2, 0);
+
+@end
+
diff --git a/Libraries external/Firebase/MLVisionTextModel/GoogleToolboxForMac.framework/Headers/GTMMethodCheck.h b/Libraries external/Firebase/MLVisionTextModel/GoogleToolboxForMac.framework/Headers/GTMMethodCheck.h
new file mode 100644
index 000000000..9fad81d8c
--- /dev/null
+++ b/Libraries external/Firebase/MLVisionTextModel/GoogleToolboxForMac.framework/Headers/GTMMethodCheck.h
@@ -0,0 +1,69 @@
+//
+//  GTMMethodCheck.h
+//
+//  Copyright 2006-2016 Google Inc.
+//
+//  Licensed under the Apache License, Version 2.0 (the "License"); you may not
+//  use this file except in compliance with the License.  You may obtain a copy
+//  of the License at
+//
+//  http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+//  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
+//  License for the specific language governing permissions and limitations under
+//  the License.
+//
+
+#import <Foundation/Foundation.h>
+#import <stdio.h>
+#import <sysexits.h>
+
+/// A macro for enforcing debug time checks to make sure all required methods are linked in
+//
+// When using categories, it can be very easy to forget to include the
+// implementation of a category.
+// Let's say you had a class foo that depended on method bar of class baz, and
+// method bar was implemented as a member of a category.
+// You could add the following code:
+//
+// GTM_METHOD_CHECK(baz, bar)
+//
+// and the code would check to make sure baz was implemented just before main
+// was called. This works for both dynamic libraries, and executables.
+//
+//
+// This is not compiled into release builds.
+
+#ifdef DEBUG
+
+// This is the "magic".
+// A) we need a multi layer define here so that the preprocessor expands
+//    __LINE__ the way we want it. We need __LINE__ so that each of our
+//    GTM_METHOD_CHECKs generates a unique function name.
+#define GTM_METHOD_CHECK(class, method) GTM_METHOD_CHECK_INNER(class, method, __LINE__)
+#define GTM_METHOD_CHECK_INNER(class, method, line) \
+    GTM_METHOD_CHECK_INNER_INNER(class, method, line)
+
+// B) define a function that is called at startup to check that |class| has an
+//    implementation for |method| (either a class method or an instance method).
+#define GTM_METHOD_CHECK_INNER_INNER(class, method, line) \
+__attribute__ ((constructor, visibility("hidden"))) \
+    static void xxGTMMethodCheckMethod ## class ## line () { \
+  @autoreleasepool { \
+    if (![class instancesRespondToSelector:@selector(method)] \
+        && ![class respondsToSelector:@selector(method)]) { \
+      fprintf(stderr, "%s:%d: error: We need method '%s' to be linked in for class '%s'\n", \
+              __FILE__, line, #method, #class); \
+      exit(EX_SOFTWARE); \
+    } \
+  } \
+}
+
+#else  // DEBUG
+
+// Do nothing in release.
+#define GTM_METHOD_CHECK(class, method)
+
+#endif  // DEBUG
diff --git a/Libraries external/Firebase/MLVisionTextModel/GoogleToolboxForMac.framework/Headers/GTMNSData+zlib.h b/Libraries external/Firebase/MLVisionTextModel/GoogleToolboxForMac.framework/Headers/GTMNSData+zlib.h
new file mode 100644
index 000000000..bb9e1b7e3
--- /dev/null
+++ b/Libraries external/Firebase/MLVisionTextModel/GoogleToolboxForMac.framework/Headers/GTMNSData+zlib.h
@@ -0,0 +1,199 @@
+//
+//  GTMNSData+zlib.h
+//
+//  Copyright 2007-2008 Google Inc.
+//
+//  Licensed under the Apache License, Version 2.0 (the "License"); you may not
+//  use this file except in compliance with the License.  You may obtain a copy
+//  of the License at
+//
+//  http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+//  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
+//  License for the specific language governing permissions and limitations under
+//  the License.
+//
+
+#import <Foundation/Foundation.h>
+#import "GTMDefines.h"
+
+/// Helpers for dealing w/ zlib inflate/deflate calls.
+@interface NSData (GTMZLibAdditions)
+
+// NOTE: For 64bit, none of these apis handle input sizes >32bits, they will
+// return nil when given such data.  To handle data of that size you really
+// should be streaming it rather then doing it all in memory.
+
+#pragma mark Gzip Compression
+
+/// Return an autoreleased NSData w/ the result of gzipping the bytes.
+//
+//  Uses the default compression level.
++ (NSData *)gtm_dataByGzippingBytes:(const void *)bytes
+                             length:(NSUInteger)length __attribute__((deprecated("Use error variant")));
++ (NSData *)gtm_dataByGzippingBytes:(const void *)bytes
+                             length:(NSUInteger)length
+                              error:(NSError **)error;
+
+/// Return an autoreleased NSData w/ the result of gzipping the payload of |data|.
+//
+//  Uses the default compression level.
++ (NSData *)gtm_dataByGzippingData:(NSData *)data __attribute__((deprecated("Use error variant")));
++ (NSData *)gtm_dataByGzippingData:(NSData *)data
+                             error:(NSError **)error;
+
+/// Return an autoreleased NSData w/ the result of gzipping the bytes using |level| compression level.
+//
+// |level| can be 1-9, any other values will be clipped to that range.
++ (NSData *)gtm_dataByGzippingBytes:(const void *)bytes
+                             length:(NSUInteger)length
+                   compressionLevel:(int)level __attribute__((deprecated("Use error variant")));
++ (NSData *)gtm_dataByGzippingBytes:(const void *)bytes
+                             length:(NSUInteger)length
+                   compressionLevel:(int)level
+                              error:(NSError **)error;
+
+/// Return an autoreleased NSData w/ the result of gzipping the payload of |data| using |level| compression level.
++ (NSData *)gtm_dataByGzippingData:(NSData *)data
+                  compressionLevel:(int)level __attribute__((deprecated("Use error variant")));
++ (NSData *)gtm_dataByGzippingData:(NSData *)data
+                  compressionLevel:(int)level
+                             error:(NSError **)error;
+
+#pragma mark Zlib "Stream" Compression
+
+// NOTE: deflate is *NOT* gzip.  deflate is a "zlib" stream.  pick which one
+// you really want to create.  (the inflate api will handle either)
+
+/// Return an autoreleased NSData w/ the result of deflating the bytes.
+//
+//  Uses the default compression level.
++ (NSData *)gtm_dataByDeflatingBytes:(const void *)bytes
+                              length:(NSUInteger)length __attribute__((deprecated("Use error variant")));
++ (NSData *)gtm_dataByDeflatingBytes:(const void *)bytes
+                              length:(NSUInteger)length
+                               error:(NSError **)error;
+
+/// Return an autoreleased NSData w/ the result of deflating the payload of |data|.
+//
+//  Uses the default compression level.
++ (NSData *)gtm_dataByDeflatingData:(NSData *)data __attribute__((deprecated("Use error variant")));
++ (NSData *)gtm_dataByDeflatingData:(NSData *)data
+                              error:(NSError **)error;
+
+/// Return an autoreleased NSData w/ the result of deflating the bytes using |level| compression level.
+//
+// |level| can be 1-9, any other values will be clipped to that range.
++ (NSData *)gtm_dataByDeflatingBytes:(const void *)bytes
+                              length:(NSUInteger)length
+                    compressionLevel:(int)level __attribute__((deprecated("Use error variant")));
++ (NSData *)gtm_dataByDeflatingBytes:(const void *)bytes
+                              length:(NSUInteger)length
+                    compressionLevel:(int)level
+                               error:(NSError **)error;
+
+/// Return an autoreleased NSData w/ the result of deflating the payload of |data| using |level| compression level.
++ (NSData *)gtm_dataByDeflatingData:(NSData *)data
+                   compressionLevel:(int)level __attribute__((deprecated("Use error variant")));
++ (NSData *)gtm_dataByDeflatingData:(NSData *)data
+                   compressionLevel:(int)level
+                              error:(NSError **)error;
+
+#pragma mark Uncompress of Gzip or Zlib
+
+/// Return an autoreleased NSData w/ the result of decompressing the bytes.
+//
+// The bytes to decompress can be zlib or gzip payloads.
++ (NSData *)gtm_dataByInflatingBytes:(const void *)bytes
+                              length:(NSUInteger)length __attribute__((deprecated("Use error variant")));
++ (NSData *)gtm_dataByInflatingBytes:(const void *)bytes
+                              length:(NSUInteger)length
+                               error:(NSError **)error;
+
+/// Return an autoreleased NSData w/ the result of decompressing the payload of |data|.
+//
+// The data to decompress can be zlib or gzip payloads.
++ (NSData *)gtm_dataByInflatingData:(NSData *)data __attribute__((deprecated("Use error variant")));
++ (NSData *)gtm_dataByInflatingData:(NSData *)data
+                              error:(NSError **)error;
+
+#pragma mark "Raw" Compression Support
+
+// NOTE: raw deflate is *NOT* gzip or deflate.  it does not include a header
+// of any form and should only be used within streams here an external crc/etc.
+// is done to validate the data.  The RawInflate apis can be used on data
+// processed like this.
+
+/// Return an autoreleased NSData w/ the result of *raw* deflating the bytes.
+//
+//  Uses the default compression level.
+//  *No* header is added to the resulting data.
++ (NSData *)gtm_dataByRawDeflatingBytes:(const void *)bytes
+                                 length:(NSUInteger)length __attribute__((deprecated("Use error variant")));
++ (NSData *)gtm_dataByRawDeflatingBytes:(const void *)bytes
+                                 length:(NSUInteger)length
+                                  error:(NSError **)error;
+
+/// Return an autoreleased NSData w/ the result of *raw* deflating the payload of |data|.
+//
+//  Uses the default compression level.
+//  *No* header is added to the resulting data.
++ (NSData *)gtm_dataByRawDeflatingData:(NSData *)data __attribute__((deprecated("Use error variant")));
++ (NSData *)gtm_dataByRawDeflatingData:(NSData *)data
+                                 error:(NSError **)error;
+
+/// Return an autoreleased NSData w/ the result of *raw* deflating the bytes using |level| compression level.
+//
+// |level| can be 1-9, any other values will be clipped to that range.
+//  *No* header is added to the resulting data.
++ (NSData *)gtm_dataByRawDeflatingBytes:(const void *)bytes
+                                 length:(NSUInteger)length
+                       compressionLevel:(int)level __attribute__((deprecated("Use error variant")));
++ (NSData *)gtm_dataByRawDeflatingBytes:(const void *)bytes
+                                 length:(NSUInteger)length
+                       compressionLevel:(int)level
+                                  error:(NSError **)error;
+
+/// Return an autoreleased NSData w/ the result of *raw* deflating the payload of |data| using |level| compression level.
+//  *No* header is added to the resulting data.
++ (NSData *)gtm_dataByRawDeflatingData:(NSData *)data
+                      compressionLevel:(int)level __attribute__((deprecated("Use error variant")));
++ (NSData *)gtm_dataByRawDeflatingData:(NSData *)data
+                      compressionLevel:(int)level
+                                 error:(NSError **)error;
+
+/// Return an autoreleased NSData w/ the result of *raw* decompressing the bytes.
+//
+// The data to decompress, it should *not* have any header (zlib nor gzip).
++ (NSData *)gtm_dataByRawInflatingBytes:(const void *)bytes
+                                 length:(NSUInteger)length __attribute__((deprecated("Use error variant")));
++ (NSData *)gtm_dataByRawInflatingBytes:(const void *)bytes
+                                 length:(NSUInteger)length
+                                  error:(NSError **)error;
+
+/// Return an autoreleased NSData w/ the result of *raw* decompressing the payload of |data|.
+//
+// The data to decompress, it should *not* have any header (zlib nor gzip).
++ (NSData *)gtm_dataByRawInflatingData:(NSData *)data __attribute__((deprecated("Use error variant")));
++ (NSData *)gtm_dataByRawInflatingData:(NSData *)data
+                                 error:(NSError **)error;
+
+@end
+
+FOUNDATION_EXPORT NSString *const GTMNSDataZlibErrorDomain;
+FOUNDATION_EXPORT NSString *const GTMNSDataZlibErrorKey;  // NSNumber
+FOUNDATION_EXPORT NSString *const GTMNSDataZlibRemainingBytesKey;  // NSNumber
+
+typedef NS_ENUM(NSInteger, GTMNSDataZlibError) {
+  GTMNSDataZlibErrorGreaterThan32BitsToCompress = 1024,
+  // An internal zlib error.
+  // GTMNSDataZlibErrorKey will contain the error value.
+  // NSLocalizedDescriptionKey may contain an error string from zlib.
+  // Look in zlib.h for list of errors.
+  GTMNSDataZlibErrorInternal,
+  // There was left over data in the buffer that was not used.
+  // GTMNSDataZlibRemainingBytesKey will contain number of remaining bytes.
+  GTMNSDataZlibErrorDataRemaining
+};
diff --git a/Libraries external/Firebase/MLVisionTextModel/GoogleToolboxForMac.framework/Headers/GTMNSDictionary+URLArguments.h b/Libraries external/Firebase/MLVisionTextModel/GoogleToolboxForMac.framework/Headers/GTMNSDictionary+URLArguments.h
new file mode 100644
index 000000000..285a82c59
--- /dev/null
+++ b/Libraries external/Firebase/MLVisionTextModel/GoogleToolboxForMac.framework/Headers/GTMNSDictionary+URLArguments.h
@@ -0,0 +1,40 @@
+//
+//  GTMNSDictionary+URLArguments.h
+//
+//  Copyright 2006-2008 Google Inc.
+//
+//  Licensed under the Apache License, Version 2.0 (the "License"); you may not
+//  use this file except in compliance with the License.  You may obtain a copy
+//  of the License at
+//
+//  http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+//  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
+//  License for the specific language governing permissions and limitations under
+//  the License.
+//
+
+#import <Foundation/Foundation.h>
+
+/// Utility for building a URL or POST argument string.
+@interface NSDictionary (GTMNSDictionaryURLArgumentsAdditions)
+
+/// Returns a dictionary of the decoded key-value pairs in a http arguments
+/// string of the form key1=value1&key2=value2&...&keyN=valueN.
+/// Keys and values will be unescaped automatically.
+/// Only the first value for a repeated key is returned.
+///
+/// NOTE: Apps targeting iOS 8 or OS X 10.10 and later should use
+///       NSURLComponents and NSURLQueryItem to create URLs with
+///       query arguments instead of using these category methods.
++ (NSDictionary *)gtm_dictionaryWithHttpArgumentsString:(NSString *)argString NS_DEPRECATED(10_0, 10_10, 2_0, 8_0, "Use NSURLComponents and NSURLQueryItem.");
+
+/// Gets a string representation of the dictionary in the form
+/// key1=value1&key2=value2&...&keyN=valueN, suitable for use as either
+/// URL arguments (after a '?') or POST body. Keys and values will be escaped
+/// automatically, so should be unescaped in the dictionary.
+- (NSString *)gtm_httpArgumentsString NS_DEPRECATED(10_0, 10_10, 2_0, 8_0, "Use NSURLComponents and NSURLQueryItem.");
+
+@end
diff --git a/Libraries external/Firebase/MLVisionTextModel/GoogleToolboxForMac.framework/Headers/GTMNSString+URLArguments.h b/Libraries external/Firebase/MLVisionTextModel/GoogleToolboxForMac.framework/Headers/GTMNSString+URLArguments.h
new file mode 100644
index 000000000..08fe231ce
--- /dev/null
+++ b/Libraries external/Firebase/MLVisionTextModel/GoogleToolboxForMac.framework/Headers/GTMNSString+URLArguments.h
@@ -0,0 +1,45 @@
+//
+//  GTMNSString+URLArguments.h
+//
+//  Copyright 2006-2008 Google Inc.
+//
+//  Licensed under the Apache License, Version 2.0 (the "License"); you may not
+//  use this file except in compliance with the License.  You may obtain a copy
+//  of the License at
+//
+//  http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+//  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
+//  License for the specific language governing permissions and limitations under
+//  the License.
+//
+
+#import <Foundation/Foundation.h>
+
+/// Utilities for encoding and decoding URL arguments.
+@interface NSString (GTMNSStringURLArgumentsAdditions)
+
+/// Returns a string that is escaped properly to be a URL argument.
+///
+/// This differs from stringByAddingPercentEscapesUsingEncoding: in that it
+/// will escape all the reserved characters (per RFC 3986
+/// <http://www.ietf.org/rfc/rfc3986.txt>) which
+/// stringByAddingPercentEscapesUsingEncoding would leave.
+///
+/// This will also escape '%', so this should not be used on a string that has
+/// already been escaped unless double-escaping is the desired result.
+///
+/// NOTE: Apps targeting iOS 8 or OS X 10.10 and later should use
+///       NSURLComponents and NSURLQueryItem to create properly-escaped
+///       URLs instead of using these category methods.
+- (NSString*)gtm_stringByEscapingForURLArgument NS_DEPRECATED(10_0, 10_10, 2_0, 8_0, "Use NSURLComponents.");
+
+/// Returns the unescaped version of a URL argument
+///
+/// This has the same behavior as stringByReplacingPercentEscapesUsingEncoding:,
+/// except that it will also convert '+' to space.
+- (NSString*)gtm_stringByUnescapingFromURLArgument NS_DEPRECATED(10_0, 10_10, 2_0, 8_0, "Use NSURLComponents.");
+
+@end
diff --git a/Libraries external/Firebase/MLVisionTextModel/GoogleToolboxForMac.framework/Headers/GTMStringEncoding.h b/Libraries external/Firebase/MLVisionTextModel/GoogleToolboxForMac.framework/Headers/GTMStringEncoding.h
new file mode 100644
index 000000000..24fa0bc75
--- /dev/null
+++ b/Libraries external/Firebase/MLVisionTextModel/GoogleToolboxForMac.framework/Headers/GTMStringEncoding.h
@@ -0,0 +1,112 @@
+//
+//  GTMStringEncoding.h
+//
+//  Copyright 2010 Google Inc.
+//
+//  Licensed under the Apache License, Version 2.0 (the "License"); you may not
+//  use this file except in compliance with the License.  You may obtain a copy
+//  of the License at
+//
+//  http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+//  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
+//  License for the specific language governing permissions and limitations under
+//  the License.
+//
+
+#import <Foundation/Foundation.h>
+#import "GTMDefines.h"
+
+// A generic class for arbitrary base-2 to 128 string encoding and decoding.
+@interface GTMStringEncoding : NSObject {
+ @private
+  NSData *charMapData_;
+  char *charMap_;
+  int reverseCharMap_[128];
+  int shift_;
+  int mask_;
+  BOOL doPad_;
+  char paddingChar_;
+  int padLen_;
+}
+
+// Create a new, autoreleased GTMStringEncoding object with a standard encoding.
++ (id)binaryStringEncoding;
++ (id)hexStringEncoding;
++ (id)rfc4648Base32StringEncoding;
++ (id)rfc4648Base32HexStringEncoding;
++ (id)crockfordBase32StringEncoding;
++ (id)rfc4648Base64StringEncoding;
++ (id)rfc4648Base64WebsafeStringEncoding;
+
+// Create a new, autoreleased GTMStringEncoding object with the given string,
+// as described below.
++ (id)stringEncodingWithString:(NSString *)string;
+
+// Initialize a new GTMStringEncoding object with the string.
+//
+// The length of the string must be a power of 2, at least 2 and at most 128.
+// Only 7-bit ASCII characters are permitted in the string.
+//
+// These characters are the canonical set emitted during encoding.
+// If the characters have alternatives (e.g. case, easily transposed) then use
+// addDecodeSynonyms: to configure them.
+- (id)initWithString:(NSString *)string;
+
+// Add decoding synonyms as specified in the synonyms argument.
+//
+// It should be a sequence of one previously reverse mapped character,
+// followed by one or more non-reverse mapped character synonyms.
+// Only 7-bit ASCII characters are permitted in the string.
+//
+// e.g. If a GTMStringEncoder object has already been initialised with a set
+// of characters excluding I, L and O (to avoid confusion with digits) and you
+// want to accept them as digits you can call addDecodeSynonyms:@"0oO1iIlL".
+- (void)addDecodeSynonyms:(NSString *)synonyms;
+
+// A sequence of characters to ignore if they occur during encoding.
+// Only 7-bit ASCII characters are permitted in the string.
+- (void)ignoreCharacters:(NSString *)chars;
+
+// Indicates whether padding is performed during encoding.
+- (BOOL)doPad;
+- (void)setDoPad:(BOOL)doPad;
+
+// Sets the padding character to use during encoding.
+- (void)setPaddingChar:(char)c;
+
+// Encode a raw binary buffer to a 7-bit ASCII string.
+- (NSString *)encode:(NSData *)data __attribute__((deprecated("Use encode:error:")));
+- (NSString *)encodeString:(NSString *)string __attribute__((deprecated("Use encodeString:error:")));
+
+- (NSString *)encode:(NSData *)data error:(NSError **)error;
+- (NSString *)encodeString:(NSString *)string error:(NSError **)error;
+
+// Decode a 7-bit ASCII string to a raw binary buffer.
+- (NSData *)decode:(NSString *)string __attribute__((deprecated("Use decode:error:")));
+- (NSString *)stringByDecoding:(NSString *)string __attribute__((deprecated("Use stringByDecoding:error:")));
+
+- (NSData *)decode:(NSString *)string error:(NSError **)error;
+- (NSString *)stringByDecoding:(NSString *)string error:(NSError **)error;
+
+@end
+
+FOUNDATION_EXPORT NSString *const GTMStringEncodingErrorDomain;
+FOUNDATION_EXPORT NSString *const GTMStringEncodingBadCharacterIndexKey;  // NSNumber
+
+typedef NS_ENUM(NSInteger, GTMStringEncodingError) {
+  // Unable to convert a buffer to NSASCIIStringEncoding.
+  GTMStringEncodingErrorUnableToConverToAscii = 1024,
+  // Unable to convert a buffer to NSUTF8StringEncoding.
+  GTMStringEncodingErrorUnableToConverToUTF8,
+  // Encountered a bad character.
+  // GTMStringEncodingBadCharacterIndexKey will have the index of the character.
+  GTMStringEncodingErrorUnknownCharacter,
+  // The data had a padding character in the middle of the data. Padding characters
+  // can only be at the end.
+  GTMStringEncodingErrorExpectedPadding,
+  // There is unexpected data at the end of the data that could not be decoded.
+  GTMStringEncodingErrorIncompleteTrailingData,
+};
diff --git a/Libraries external/Firebase/MLVisionTextModel/GoogleToolboxForMac.framework/Headers/GTMTypeCasting.h b/Libraries external/Firebase/MLVisionTextModel/GoogleToolboxForMac.framework/Headers/GTMTypeCasting.h
new file mode 100644
index 000000000..0c5899fe4
--- /dev/null
+++ b/Libraries external/Firebase/MLVisionTextModel/GoogleToolboxForMac.framework/Headers/GTMTypeCasting.h
@@ -0,0 +1,71 @@
+//
+//  GTMTypeCasting.h
+//
+//  Copyright 2010 Google Inc.
+//
+//  Licensed under the Apache License, Version 2.0 (the "License"); you may not
+//  use this file except in compliance with the License.  You may obtain a copy
+//  of the License at
+//
+//  http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+//  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
+//  License for the specific language governing permissions and limitations under
+//  the License.
+//
+
+#import <Foundation/Foundation.h>
+#import "GTMDefines.h"
+
+// These are some basic macros for making down-casting safer in Objective C.
+// They are loosely based on the same cast types with similar names in C++.
+// A typical usage would look like this:
+//
+// Bar* b = [[Bar alloc] init];
+// Foo* a = GTM_STATIC_CAST(Foo, b);
+//
+// Note that it's GTM_STATIC_CAST(Foo, b) and not GTM_STATIC_CAST(Foo*, b).
+//
+// GTM_STATIC_CAST runs only in debug mode, and will assert if and only if:
+//   - object is non nil
+//   - [object isKindOfClass:[cls class]] returns nil
+//
+// otherwise it returns object.
+//
+// GTM_DYNAMIC_CAST runs in both debug and release and will return nil if
+//   - object is nil
+//   - [object isKindOfClass:[cls class]] returns nil
+//
+// otherwise it returns object.
+//
+
+// Support functions for dealing with casting.
+GTM_INLINE id GTMDynamicCastSupport(Class cls, id object) {
+  _GTMDevAssert(cls, @"Nil Class");
+  return [object isKindOfClass:cls] ? object : nil;
+}
+
+GTM_INLINE id GTMStaticCastSupport(Class cls, id object) {
+  id value = nil;
+  if (object) {
+    value = GTMDynamicCastSupport(cls, object);
+    _GTMDevAssert(value, @"Could not cast %@ to class %@", object, cls);
+  }
+  return value;
+}
+
+#ifndef GTM_STATIC_CAST
+  #ifdef DEBUG
+    #define GTM_STATIC_CAST(type, object) \
+      ((type *) GTMStaticCastSupport([type class], object))
+  #else
+    #define GTM_STATIC_CAST(type, object) ((type *) (object))
+  #endif
+#endif
+
+#ifndef GTM_DYNAMIC_CAST
+  #define GTM_DYNAMIC_CAST(type, object) \
+    ((type *) GTMDynamicCastSupport([type class], object))
+#endif
diff --git a/Libraries external/Firebase/MLVisionTextModel/GoogleToolboxForMac.framework/Headers/GTMURLBuilder.h b/Libraries external/Firebase/MLVisionTextModel/GoogleToolboxForMac.framework/Headers/GTMURLBuilder.h
new file mode 100644
index 000000000..f333ec44a
--- /dev/null
+++ b/Libraries external/Firebase/MLVisionTextModel/GoogleToolboxForMac.framework/Headers/GTMURLBuilder.h
@@ -0,0 +1,73 @@
+//
+//  GTMURLBuilder.h
+//
+//  Copyright 2012 Google Inc.
+//
+//  Licensed under the Apache License, Version 2.0 (the "License"); you may not
+//  use this file except in compliance with the License.  You may obtain a copy
+//  of the License at
+//
+//  http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+//  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
+//  License for the specific language governing permissions and limitations
+//  under the License.
+//
+
+//
+// Class for creating URLs. It handles URL encoding of parameters.
+//
+// Usage example:
+//
+// GTMURLBuilder *URLBuilder =
+//     [GTMURLBuilder builderWithString:@"http://www.google.com"];
+// [URLBuilder setValue:@"abc" forParameter:@"q"];
+// NSURL *URL = [URLBuilder URL];
+//
+// NOTE: Apps targeting iOS 8 or OS X 10.10 and later should use
+//       NSURLComponents and NSURLQueryItem to create URLs with
+//       query arguments instead of using this class.
+
+
+#import <Foundation/Foundation.h>
+#import "GTMDefines.h"
+
+#if (!TARGET_OS_IPHONE && defined(MAC_OS_X_VERSION_10_10) && MAC_OS_X_VERSION_MIN_REQUIRED >= MAC_OS_X_VERSION_10_10) \
+|| (TARGET_OS_IPHONE && defined(__IPHONE_8_0) && __IPHONE_OS_VERSION_MIN_REQUIRED >= __IPHONE_8_0)
+__deprecated_msg("GTMURLBuilder is obsolete; update your app to use NSURLComponents queryItems property instead.")
+#endif
+@interface GTMURLBuilder : NSObject {
+ @private
+  NSMutableDictionary *params_;
+}
+
+@property(nonatomic, readonly) NSString *baseURLString;
+
+// |URLString| is expected to be a valid URL with already escaped parameter
+// values.
++ (GTMURLBuilder *)builderWithString:(NSString *)URLString;
++ (GTMURLBuilder *)builderWithURL:(NSURL *)URL;
+
+// |URLString| The base URL to which parameters will be appended.
+// If the URL already contains parameters, they should already be encoded.
+- (id)initWithString:(NSString *)URLString;
+- (void)setValue:(NSString *)value forParameter:(NSString *)parameter;
+- (void)setIntegerValue:(NSInteger)value forParameter:(NSString *)parameter;
+- (NSString *)valueForParameter:(NSString *)parameter;
+// Returns 0 if there is no value for |parameter| or if the value cannot
+// be parsed into an NSInteger. Use valueForParameter if you want to make
+// sure that the value is set before attempting the parsing.
+- (NSInteger)integerValueForParameter:(NSString *)parameter;
+- (void)removeParameter:(NSString *)parameter;
+- (void)setParameters:(NSDictionary *)parameters;
+- (NSDictionary *)parameters;
+- (NSURL *)URL;
+- (NSString *)URLString;
+
+// Case-sensitive comparison of the URL. Also protocol and host are compared
+// as case-sensitive strings. The order of URL parameters is ignored.
+- (BOOL)isEqual:(GTMURLBuilder *)URLBuilder;
+
+@end
diff --git a/Libraries external/Firebase/MLVisionTextModel/GoogleToolboxForMac.framework/Modules/module.modulemap b/Libraries external/Firebase/MLVisionTextModel/GoogleToolboxForMac.framework/Modules/module.modulemap
new file mode 100644
index 000000000..5334fe1eb
--- /dev/null
+++ b/Libraries external/Firebase/MLVisionTextModel/GoogleToolboxForMac.framework/Modules/module.modulemap
@@ -0,0 +1,6 @@
+framework module GoogleToolboxForMac {
+umbrella header "GoogleToolboxForMac.h"
+export *
+module * { export * }
+  link "z"
+}