new version

package.json

 {
   "name": "ts-linker-sdk",
-  "version": "1.0.4",
+  "version": "1.0.5",
   "description": "linker's ts sdk",
   "main": "lib/src/client.js",
   "scripts": {

src/client.ts

     operator: string,
     listener: (data: string) => void,
   ): void {
-    this.listeners[Utils.crc32(operator)] = listener;
+    this.listeners.set(Utils.crc32(operator), listener);
   }
 
   /**