fix json parse

src/client.ts

                 packet.body = '{}';
               }
 
+              this.responseHeader = packet.header;
               (<(data: string) => void>this.listeners.get(operator))(
-                packet.body,
+                JSON.parse(packet.body),
               );
             }
 

src/packet.ts

 import { Utils } from './utils';
-import Int64 = require('node-int64');
+import Int64 from 'node-int64';
 
 export class Packet {
   private key: string = 'b8ca9aa66def05ff3f24919274bb4a66';

tsconfig.json

 {
   "compileOnSave": true,
   "compilerOptions": {
+    // Target latest version of ECMAScript.
     "target": "es5",
+    // Search under node_modules for non-relative imports.
     "moduleResolution": "node",
+    // Process & infer types from .js files.
+    "allowJs": true,
+    // Don't emit; allow Babel to transform files.
+    "noEmit": true,
+    // Import non-ES modules as default imports.
+    "esModuleInterop": true,
+    // Enable strictest settings like strictNullChecks & noImplicitAny.
     "strictNullChecks": true,
     "alwaysStrict": true,
     "sourceMap": true,
-    "declaration": true,
     "rootDirs": [
       "src",
       "example"
     ],
     "outDir": "lib/",
-    "declarationDir": "lib/types"
   },
   "include": [
     "src/**/*",