def get_device_specification(self) -> v2.device_pb2.DeviceSpecification | None:
        """Returns a device specification proto for use in determining
        information about the device.

        Returns:
            Device specification proto if present.
        """
Returns a device specification proto for use in determining
        information about the device.

        Returns:
            Device specification proto if present.
        
cirq-google/cirq_google/engine/abstract_processor.py