Method on

lib/utils/rpc.ts:34–36

(ev: string, fn: (...args: any[]) => void)

  };

  on(ev: string, fn: (...args: any[]) => void) {
    this.emitter.on(ev, fn);
  }

  once(ev: string, fn: (...args: any[]) => void) {
    this.emitter.once(ev, fn);