def __init__(cls, name, bases, dictionary):
super(GeneratedServiceStubType, cls).__init__(name, bases, dictionary)<EOL>if GeneratedServiceStubType._DESCRIPTOR_KEY not in dictionary:<EOL><INDENT>return<EOL><DEDENT>descriptor = dictionary[GeneratedServiceStubType._DESCRIPTOR_KEY]<EOL>service_stub_builder = _ServiceStubBuilder(descriptor)<EOL>service_stub_builder.BuildServiceStub(cls)<EOL>
Creates a message service stub class.

        Args:
          name: Name of the class (ignored, here).
          bases: Base classes of the class being constructed.
          dictionary: The class dictionary of the class being constructed.
            dictionary[_DESCRIPTOR_KEY] must contain a ServiceDescriptor object
            describing this protocol service type.