@NonNull
	static WriteRequest newIndicationRequest(
			@Nullable final BluetoothGattCharacteristic characteristic,
			@Nullable final byte[] value) {
		return new WriteRequest(Type.INDICATE, characteristic, value, 0,
				value != null ? value.length : 0);
	}
Creates new Send Indication request. The request will not be executed if given
characteristic is null or does not have INDICATE property.
After the operation is complete a proper callback will be invoked.

@param characteristic characteristic to be indicated.
@param value          value to be sent. The array is copied into another buffer so it's
                      safe to reuse the array again.
@return The new request.
ble/src/main/java/no/nordicsemi/android/ble/Request.java