void notifyStarted(@NonNull final BluetoothDevice device) {
		if (!started) {
			started = true;

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