2 files changed, 35 insertions, 0 deletions
diff --git a/tsconfig.json b/tsconfig.json
index 80189489b6c..81b736a5fdc 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -3,6 +3,7 @@
   "exclude": ["src","tools","out"],
   "files": [
     "./typings/internalBinding/fs.d.ts",
+    "./typings/internalBinding/serdes.d.ts",
     "./typings/internalBinding/util.d.ts",
     "./typings/internalBinding.d.ts",
     "./typings/primordials.d.ts"
diff --git a/typings/internalBinding/serdes.d.ts b/typings/internalBinding/serdes.d.ts
new file mode 100644
index 00000000000..d328123e25a
--- /dev/null
+++ b/typings/internalBinding/serdes.d.ts
@@ -0,0 +1,34 @@
+declare namespace InternalSerdesBinding {
+  class Serializer {
+    _getDataCloneError: typeof Error;
+    constructor();
+    _setTreatArrayBufferViewsAsHostObjects(value: boolean): void;
+    releaseBuffer(): Buffer;
+    transferArrayBuffer(id: number, arrayBuffer: ArrayBuffer): void;
+    writeDouble(value: number): void;
+    writeHeader(): void;
+    writeRawBytes(value: ArrayBufferView): void;
+    writeUint32(value: number): void;
+    writeUint64(hi: number, lo: number): void;
+    writeValue(value: any): void;
+  }
+
+  class Deserializer {
+    buffer: ArrayBufferView;
+    constructor(buffer: ArrayBufferView);
+    _readRawBytes(length: number): number;
+    getWireFormatVersion(): number;
+    readDouble(): number;
+    readHeader(): boolean;
+    readRawBytes(length: number): Buffer;
+    readUint32(): number;
+    readUint64(): [hi: number, lo: number];
+    readValue(): unknown;
+    transferArrayBuffer(id: number, arrayBuffer: ArrayBuffer | SharedArrayBuffer): void;
+  }
+}
+
+declare function InternalBinding(binding: 'serdes'): {
+  Serializer: typeof InternalSerdesBinding.Serializer;
+  Deserializer: typeof InternalSerdesBinding.Deserializer;
+};