@Override
		public void onDescriptorWriteRequest(@NonNull final BluetoothDevice device, final int requestId,
											 @NonNull final BluetoothGattDescriptor descriptor,
											 final boolean preparedWrite, final boolean responseNeeded,
											 final int offset, @NonNull final byte[] value) {
			final BleManagerHandler handler = getRequestHandler(device);
			if (handler != null) {
				handler.onDescriptorWriteRequest(server, device, requestId, descriptor,
						preparedWrite, responseNeeded, offset, value);
			}
		}
This helper method returns a new instance of Client User Description Descriptor
that can be added to a server characteristic in {@link #initializeServer()}.

@param description the UTF-8 string that is a user textual description of the characteristic.
@param writableAuxiliaries if true, the descriptor will be writable and the Writable Auxiliaries
                           bit in Characteristic Extended Properties descriptor will be set.
                           See Vol. 3, Part F, Section 3.3.3.2 in Bluetooth Core specification 5.1.
@return The User Description descriptor.
ble/src/main/java/no/nordicsemi/android/ble/BleServerManager.java