Method handler

packages/event-bus-client/src/plugin.ts:261–264

(e: Event)

      return () => {}
    }
    const handler = (e: Event) => {
      this.debugLog('Received event from bus', (e as CustomEvent).detail)
      cb((e as CustomEvent).detail)
    }
    this.#eventTarget().addEventListener(eventName, handler)
    this.debugLog('Registered event to bus', eventName)
    return () => {