add hw2

node_modules/socks/typings/common/receivebuffer.d.ts

@@ -0,0 +1,12 @@
+/// <reference types="node" />
+declare class ReceiveBuffer {
+    private buffer;
+    private offset;
+    private originalSize;
+    constructor(size?: number);
+    get length(): number;
+    append(data: Buffer): number;
+    peek(length: number): Buffer;
+    get(length: number): Buffer;
+}
+export { ReceiveBuffer };