void notifyInvalidRequest() {
		if (!finished) {
			finished = true;

			handler.post(() -> {
				if (invalidRequestCallback != null) {
					try {
						invalidRequestCallback.onInvalidRequest();
					} catch (final Throwable t) {
						Log.e(TAG, "Exception in Invalid Request callback", t);
					}
				}
			});
		}
	}
Enqueues the request for asynchronous execution.
ble/src/main/java/no/nordicsemi/android/ble/Request.java