protected boolean isOptionalServiceSupported(@NonNull final BluetoothGatt gatt) {
		// Don't call super.isOptionalServiceSupported(gatt) when overriding this method.
		return requestHandler.isOptionalServiceSupported(gatt);
	}
This method should return <code>true</code> when the gatt device supports the
optional services. The default implementation returns <code>false</code>.

@param gatt the gatt device with services discovered
@return <code>True</code> when the device has the optional service.
ble/src/main/java/no/nordicsemi/android/ble/BleManager.java