@Nullable
	public final byte[] getCharacteristicValue(@NonNull final BluetoothGattCharacteristic serverCharacteristic) {
		if (characteristicValues != null && characteristicValues.containsKey(serverCharacteristic))
			return characteristicValues.get(serverCharacteristic);
		return serverCharacteristic.getValue();
	}
Returns the value of the server characteristic. For characteristics that are not shared,
the value may be different for each connected device.

@param serverCharacteristic The characteristic to get value of.
@return The value.
ble/src/main/java/no/nordicsemi/android/ble/BleManagerHandler.java