Python google.protobuf.descriptor.ServiceDescriptor() Examples

def _AddServiceDescriptor(self, service_desc):
    """Adds a ServiceDescriptor to the pool.

    Args:
      service_desc: A ServiceDescriptor.
    """

    if not isinstance(service_desc, descriptor.ServiceDescriptor):
      raise TypeError('Expected instance of descriptor.ServiceDescriptor.')

    self._CheckConflictRegister(service_desc, service_desc.full_name,
                                service_desc.file.name)
    self._service_descriptors[service_desc.full_name] = service_desc

  # Add ExtensionDescriptor to descriptor pool is dreprecated. Please use Add()
  # or AddSerializedFile() to add a FileDescriptorProto instead. 

def FindServiceByName(self, full_name):
    """Loads the named service descriptor from the pool.

    Args:
      full_name (str): The full name of the service descriptor to load.

    Returns:
      ServiceDescriptor: The service descriptor for the named service.

    Raises:
      KeyError: if the service cannot be found in the pool.
    """
    full_name = _NormalizeFullyQualifiedName(full_name)
    if full_name not in self._service_descriptors:
      self._FindFileContainingSymbolInDb(full_name)
    return self._service_descriptors[full_name] 

def FindServiceByName(self, full_name):
    """Loads the named service descriptor from the pool.

    Args:
      full_name (str): The full name of the service descriptor to load.

    Returns:
      ServiceDescriptor: The service descriptor for the named service.

    Raises:
      KeyError: if the service cannot be found in the pool.
    """
    full_name = _NormalizeFullyQualifiedName(full_name)
    if full_name not in self._service_descriptors:
      self._FindFileContainingSymbolInDb(full_name)
    return self._service_descriptors[full_name] 

def _AddServiceDescriptor(self, service_desc):
    """Adds a ServiceDescriptor to the pool.

    Args:
      service_desc: A ServiceDescriptor.
    """

    if not isinstance(service_desc, descriptor.ServiceDescriptor):
      raise TypeError('Expected instance of descriptor.ServiceDescriptor.')

    self._CheckConflictRegister(service_desc, service_desc.full_name,
                                service_desc.file.name)
    self._service_descriptors[service_desc.full_name] = service_desc

  # Add ExtensionDescriptor to descriptor pool is dreprecated. Please use Add()
  # or AddSerializedFile() to add a FileDescriptorProto instead. 

def FindServiceByName(self, full_name):
    """Loads the named service descriptor from the pool.

    Args:
      full_name (str): The full name of the service descriptor to load.

    Returns:
      ServiceDescriptor: The service descriptor for the named service.

    Raises:
      KeyError: if the service cannot be found in the pool.
    """
    full_name = _NormalizeFullyQualifiedName(full_name)
    if full_name not in self._service_descriptors:
      self._FindFileContainingSymbolInDb(full_name)
    return self._service_descriptors[full_name] 

def _AddServiceDescriptor(self, service_desc):
    """Adds a ServiceDescriptor to the pool.

    Args:
      service_desc: A ServiceDescriptor.
    """

    if not isinstance(service_desc, descriptor.ServiceDescriptor):
      raise TypeError('Expected instance of descriptor.ServiceDescriptor.')

    self._CheckConflictRegister(service_desc, service_desc.full_name,
                                service_desc.file.name)
    self._service_descriptors[service_desc.full_name] = service_desc

  # Add ExtensionDescriptor to descriptor pool is dreprecated. Please use Add()
  # or AddSerializedFile() to add a FileDescriptorProto instead. 

def _AddServiceDescriptor(self, service_desc):
    """Adds a ServiceDescriptor to the pool.

    Args:
      service_desc: A ServiceDescriptor.
    """

    if not isinstance(service_desc, descriptor.ServiceDescriptor):
      raise TypeError('Expected instance of descriptor.ServiceDescriptor.')

    self._CheckConflictRegister(service_desc, service_desc.full_name,
                                service_desc.file.name)
    self._service_descriptors[service_desc.full_name] = service_desc

  # Add ExtensionDescriptor to descriptor pool is dreprecated. Please use Add()
  # or AddSerializedFile() to add a FileDescriptorProto instead. 

def FindServiceByName(self, full_name):
    """Loads the named service descriptor from the pool.

    Args:
      full_name (str): The full name of the service descriptor to load.

    Returns:
      ServiceDescriptor: The service descriptor for the named service.

    Raises:
      KeyError: if the service cannot be found in the pool.
    """
    full_name = _NormalizeFullyQualifiedName(full_name)
    if full_name not in self._service_descriptors:
      self._FindFileContainingSymbolInDb(full_name)
    return self._service_descriptors[full_name] 

def _AddServiceDescriptor(self, service_desc):
    """Adds a ServiceDescriptor to the pool.

    Args:
      service_desc: A ServiceDescriptor.
    """

    if not isinstance(service_desc, descriptor.ServiceDescriptor):
      raise TypeError('Expected instance of descriptor.ServiceDescriptor.')

    self._CheckConflictRegister(service_desc, service_desc.full_name,
                                service_desc.file.name)
    self._service_descriptors[service_desc.full_name] = service_desc

  # Add ExtensionDescriptor to descriptor pool is dreprecated. Please use Add()
  # or AddSerializedFile() to add a FileDescriptorProto instead. 

def FindServiceByName(self, full_name):
    """Loads the named service descriptor from the pool.

    Args:
      full_name (str): The full name of the service descriptor to load.

    Returns:
      ServiceDescriptor: The service descriptor for the named service.

    Raises:
      KeyError: if the service cannot be found in the pool.
    """
    full_name = _NormalizeFullyQualifiedName(full_name)
    if full_name not in self._service_descriptors:
      self._FindFileContainingSymbolInDb(full_name)
    return self._service_descriptors[full_name] 

def _CheckConflictRegister(self, desc):
    """Check if the descriptor name conflicts with another of the same name.

    Args:
      desc: Descriptor of a message, enum, service or extension.
    """
    desc_name = desc.full_name
    for register, descriptor_type in [
        (self._descriptors, descriptor.Descriptor),
        (self._enum_descriptors, descriptor.EnumDescriptor),
        (self._service_descriptors, descriptor.ServiceDescriptor),
        (self._toplevel_extensions, descriptor.FieldDescriptor)]:
      if desc_name in register:
        file_name = register[desc_name].file.name
        if not isinstance(desc, descriptor_type) or (
            file_name != desc.file.name):
          warn_msg = ('Conflict register for file "' + desc.file.name +
                      '": ' + desc_name +
                      ' is already defined in file "' +
                      file_name + '"')
          warnings.warn(warn_msg, RuntimeWarning)
        return 

def _CheckConflictRegister(self, desc):
    """Check if the descriptor name conflicts with another of the same name.

    Args:
      desc: Descriptor of a message, enum, service or extension.
    """
    desc_name = desc.full_name
    for register, descriptor_type in [
        (self._descriptors, descriptor.Descriptor),
        (self._enum_descriptors, descriptor.EnumDescriptor),
        (self._service_descriptors, descriptor.ServiceDescriptor),
        (self._toplevel_extensions, descriptor.FieldDescriptor)]:
      if desc_name in register:
        file_name = register[desc_name].file.name
        if not isinstance(desc, descriptor_type) or (
            file_name != desc.file.name):
          warn_msg = ('Conflict register for file "' + desc.file.name +
                      '": ' + desc_name +
                      ' is already defined in file "' +
                      file_name + '"')
          warnings.warn(warn_msg, RuntimeWarning)
        return 

def _AddEnumDescriptor(self, enum_desc):
    """Adds an EnumDescriptor to the pool.

    This method also registers the FileDescriptor associated with the enum.

    Args:
      enum_desc: An EnumDescriptor.
    """

    if not isinstance(enum_desc, descriptor.EnumDescriptor):
      raise TypeError('Expected instance of descriptor.EnumDescriptor.')

    file_name = enum_desc.file.name
    self._CheckConflictRegister(enum_desc, enum_desc.full_name, file_name)
    self._enum_descriptors[enum_desc.full_name] = enum_desc

    # Top enum values need to be indexed.
    # Count the number of dots to see whether the enum is toplevel or nested
    # in a message. We cannot use enum_desc.containing_type at this stage.
    if enum_desc.file.package:
      top_level = (enum_desc.full_name.count('.')
                   - enum_desc.file.package.count('.') == 1)
    else:
      top_level = enum_desc.full_name.count('.') == 0
    if top_level:
      file_name = enum_desc.file.name
      package = enum_desc.file.package
      for enum_value in enum_desc.values:
        full_name = _NormalizeFullyQualifiedName(
            '.'.join((package, enum_value.name)))
        self._CheckConflictRegister(enum_value, full_name, file_name)
        self._top_enum_values[full_name] = enum_value
    self._AddFileDescriptor(enum_desc.file)

  # Add ServiceDescriptor to descriptor pool is dreprecated. Please use Add()
  # or AddSerializedFile() to add a FileDescriptorProto instead. 

def _CheckConflictRegister(self, desc, desc_name, file_name):
    """Check if the descriptor name conflicts with another of the same name.

    Args:
      desc: Descriptor of a message, enum, service, extension or enum value.
      desc_name (str): the full name of desc.
      file_name (str): The file name of descriptor.
    """
    for register, descriptor_type in [
        (self._descriptors, descriptor.Descriptor),
        (self._enum_descriptors, descriptor.EnumDescriptor),
        (self._service_descriptors, descriptor.ServiceDescriptor),
        (self._toplevel_extensions, descriptor.FieldDescriptor),
        (self._top_enum_values, descriptor.EnumValueDescriptor)]:
      if desc_name in register:
        old_desc = register[desc_name]
        if isinstance(old_desc, descriptor.EnumValueDescriptor):
          old_file = old_desc.type.file.name
        else:
          old_file = old_desc.file.name

        if not isinstance(desc, descriptor_type) or (
            old_file != file_name):
          error_msg = ('Conflict register for file "' + file_name +
                       '": ' + desc_name +
                       ' is already defined in file "' +
                       old_file + '". Please fix the conflict by adding '
                       'package name on the proto file, or use different '
                       'name for the duplication.')
          if isinstance(desc, descriptor.EnumValueDescriptor):
            error_msg += ('\nNote: enum values appear as '
                          'siblings of the enum type instead of '
                          'children of it.')

          raise TypeError(error_msg)

        return 

def _MakeServiceDescriptor(self, service_proto, service_index, scope,
                             package, file_desc):
    """Make a protobuf ServiceDescriptor given a ServiceDescriptorProto.

    Args:
      service_proto: The descriptor_pb2.ServiceDescriptorProto protobuf message.
      service_index: The index of the service in the File.
      scope: Dict mapping short and full symbols to message and enum types.
      package: Optional package name for the new message EnumDescriptor.
      file_desc: The file containing the service descriptor.

    Returns:
      The added descriptor.
    """

    if package:
      service_name = '.'.join((package, service_proto.name))
    else:
      service_name = service_proto.name

    methods = [self._MakeMethodDescriptor(method_proto, service_name, package,
                                          scope, index)
               for index, method_proto in enumerate(service_proto.method)]
    desc = descriptor.ServiceDescriptor(name=service_proto.name,
                                        full_name=service_name,
                                        index=service_index,
                                        methods=methods,
                                        options=_OptionsOrNone(service_proto),
                                        file=file_desc)
    return desc 

def service_descriptor(self):
        if self._service_descriptor is None:
            self._service_descriptor = inspect.getmembers(
                self.protobufs_module,
                lambda member: isinstance(member, descriptor.ServiceDescriptor)
                and member.name == self.stub.__name__[:-4],
            )[0][1]
        return self._service_descriptor 

def _MakeServiceDescriptor(self, service_proto, service_index, scope,
                             package, file_desc):
    """Make a protobuf ServiceDescriptor given a ServiceDescriptorProto.

    Args:
      service_proto: The descriptor_pb2.ServiceDescriptorProto protobuf message.
      service_index: The index of the service in the File.
      scope: Dict mapping short and full symbols to message and enum types.
      package: Optional package name for the new message EnumDescriptor.
      file_desc: The file containing the service descriptor.

    Returns:
      The added descriptor.
    """

    if package:
      service_name = '.'.join((package, service_proto.name))
    else:
      service_name = service_proto.name

    methods = [self._MakeMethodDescriptor(method_proto, service_name, package,
                                          scope, index)
               for index, method_proto in enumerate(service_proto.method)]
    desc = descriptor.ServiceDescriptor(
        name=service_proto.name,
        full_name=service_name,
        index=service_index,
        methods=methods,
        options=_OptionsOrNone(service_proto),
        file=file_desc,
        # pylint: disable=protected-access
        create_key=descriptor._internal_create_key)
    self._CheckConflictRegister(desc, desc.full_name, desc.file.name)
    self._service_descriptors[service_name] = desc
    return desc 

def AddServiceDescriptor(self, service_desc):
    """Adds a ServiceDescriptor to the pool.

    Args:
      service_desc: A ServiceDescriptor.
    """

    if not isinstance(service_desc, descriptor.ServiceDescriptor):
      raise TypeError('Expected instance of descriptor.ServiceDescriptor.')

    self._service_descriptors[service_desc.full_name] = service_desc 

def _MakeServiceDescriptor(self, service_proto, service_index, scope,
                             package, file_desc):
    """Make a protobuf ServiceDescriptor given a ServiceDescriptorProto.

    Args:
      service_proto: The descriptor_pb2.ServiceDescriptorProto protobuf message.
      service_index: The index of the service in the File.
      scope: Dict mapping short and full symbols to message and enum types.
      package: Optional package name for the new message EnumDescriptor.
      file_desc: The file containing the service descriptor.

    Returns:
      The added descriptor.
    """

    if package:
      service_name = '.'.join((package, service_proto.name))
    else:
      service_name = service_proto.name

    methods = [self._MakeMethodDescriptor(method_proto, service_name, package,
                                          scope, index)
               for index, method_proto in enumerate(service_proto.method)]
    desc = descriptor.ServiceDescriptor(name=service_proto.name,
                                        full_name=service_name,
                                        index=service_index,
                                        methods=methods,
                                        options=_OptionsOrNone(service_proto),
                                        file=file_desc)
    self._service_descriptors[service_name] = desc
    return desc 

def _AddEnumDescriptor(self, enum_desc):
    """Adds an EnumDescriptor to the pool.

    This method also registers the FileDescriptor associated with the enum.

    Args:
      enum_desc: An EnumDescriptor.
    """

    if not isinstance(enum_desc, descriptor.EnumDescriptor):
      raise TypeError('Expected instance of descriptor.EnumDescriptor.')

    file_name = enum_desc.file.name
    self._CheckConflictRegister(enum_desc, enum_desc.full_name, file_name)
    self._enum_descriptors[enum_desc.full_name] = enum_desc

    # Top enum values need to be indexed.
    # Count the number of dots to see whether the enum is toplevel or nested
    # in a message. We cannot use enum_desc.containing_type at this stage.
    if enum_desc.file.package:
      top_level = (enum_desc.full_name.count('.')
                   - enum_desc.file.package.count('.') == 1)
    else:
      top_level = enum_desc.full_name.count('.') == 0
    if top_level:
      file_name = enum_desc.file.name
      package = enum_desc.file.package
      for enum_value in enum_desc.values:
        full_name = _NormalizeFullyQualifiedName(
            '.'.join((package, enum_value.name)))
        self._CheckConflictRegister(enum_value, full_name, file_name)
        self._top_enum_values[full_name] = enum_value
    self._AddFileDescriptor(enum_desc.file)

  # Add ServiceDescriptor to descriptor pool is dreprecated. Please use Add()
  # or AddSerializedFile() to add a FileDescriptorProto instead. 

def _CheckConflictRegister(self, desc, desc_name, file_name):
    """Check if the descriptor name conflicts with another of the same name.

    Args:
      desc: Descriptor of a message, enum, service, extension or enum value.
      desc_name (str): the full name of desc.
      file_name (str): The file name of descriptor.
    """
    for register, descriptor_type in [
        (self._descriptors, descriptor.Descriptor),
        (self._enum_descriptors, descriptor.EnumDescriptor),
        (self._service_descriptors, descriptor.ServiceDescriptor),
        (self._toplevel_extensions, descriptor.FieldDescriptor),
        (self._top_enum_values, descriptor.EnumValueDescriptor)]:
      if desc_name in register:
        old_desc = register[desc_name]
        if isinstance(old_desc, descriptor.EnumValueDescriptor):
          old_file = old_desc.type.file.name
        else:
          old_file = old_desc.file.name

        if not isinstance(desc, descriptor_type) or (
            old_file != file_name):
          error_msg = ('Conflict register for file "' + file_name +
                       '": ' + desc_name +
                       ' is already defined in file "' +
                       old_file + '". Please fix the conflict by adding '
                       'package name on the proto file, or use different '
                       'name for the duplication.')
          if isinstance(desc, descriptor.EnumValueDescriptor):
            error_msg += ('\nNote: enum values appear as '
                          'siblings of the enum type instead of '
                          'children of it.')

          raise TypeError(error_msg)

        return 

def AddServiceDescriptor(self, service_desc):
    """Adds a ServiceDescriptor to the pool.

    Args:
      service_desc: A ServiceDescriptor.
    """

    if not isinstance(service_desc, descriptor.ServiceDescriptor):
      raise TypeError('Expected instance of descriptor.ServiceDescriptor.')

    self._CheckConflictRegister(service_desc)
    self._service_descriptors[service_desc.full_name] = service_desc 

def _MakeServiceDescriptor(self, service_proto, service_index, scope,
                             package, file_desc):
    """Make a protobuf ServiceDescriptor given a ServiceDescriptorProto.

    Args:
      service_proto: The descriptor_pb2.ServiceDescriptorProto protobuf message.
      service_index: The index of the service in the File.
      scope: Dict mapping short and full symbols to message and enum types.
      package: Optional package name for the new message EnumDescriptor.
      file_desc: The file containing the service descriptor.

    Returns:
      The added descriptor.
    """

    if package:
      service_name = '.'.join((package, service_proto.name))
    else:
      service_name = service_proto.name

    methods = [self._MakeMethodDescriptor(method_proto, service_name, package,
                                          scope, index)
               for index, method_proto in enumerate(service_proto.method)]
    desc = descriptor.ServiceDescriptor(name=service_proto.name,
                                        full_name=service_name,
                                        index=service_index,
                                        methods=methods,
                                        options=_OptionsOrNone(service_proto),
                                        file=file_desc)
    self._CheckConflictRegister(desc)
    self._service_descriptors[service_name] = desc
    return desc 

def _MakeServiceDescriptor(self, service_proto, service_index, scope,
                             package, file_desc):
    """Make a protobuf ServiceDescriptor given a ServiceDescriptorProto.

    Args:
      service_proto: The descriptor_pb2.ServiceDescriptorProto protobuf message.
      service_index: The index of the service in the File.
      scope: Dict mapping short and full symbols to message and enum types.
      package: Optional package name for the new message EnumDescriptor.
      file_desc: The file containing the service descriptor.

    Returns:
      The added descriptor.
    """

    if package:
      service_name = '.'.join((package, service_proto.name))
    else:
      service_name = service_proto.name

    methods = [self._MakeMethodDescriptor(method_proto, service_name, package,
                                          scope, index)
               for index, method_proto in enumerate(service_proto.method)]
    desc = descriptor.ServiceDescriptor(
        name=service_proto.name,
        full_name=service_name,
        index=service_index,
        methods=methods,
        options=_OptionsOrNone(service_proto),
        file=file_desc,
        # pylint: disable=protected-access
        create_key=descriptor._internal_create_key)
    self._CheckConflictRegister(desc, desc.full_name, desc.file.name)
    self._service_descriptors[service_name] = desc
    return desc 

def _MakeServiceDescriptor(self, service_proto, service_index, scope,
                             package, file_desc):
    """Make a protobuf ServiceDescriptor given a ServiceDescriptorProto.

    Args:
      service_proto: The descriptor_pb2.ServiceDescriptorProto protobuf message.
      service_index: The index of the service in the File.
      scope: Dict mapping short and full symbols to message and enum types.
      package: Optional package name for the new message EnumDescriptor.
      file_desc: The file containing the service descriptor.

    Returns:
      The added descriptor.
    """

    if package:
      service_name = '.'.join((package, service_proto.name))
    else:
      service_name = service_proto.name

    methods = [self._MakeMethodDescriptor(method_proto, service_name, package,
                                          scope, index)
               for index, method_proto in enumerate(service_proto.method)]
    desc = descriptor.ServiceDescriptor(name=service_proto.name,
                                        full_name=service_name,
                                        index=service_index,
                                        methods=methods,
                                        options=_OptionsOrNone(service_proto),
                                        file=file_desc)
    return desc 

def AddServiceDescriptor(self, service_desc):
    """Adds a ServiceDescriptor to the pool.

    Args:
      service_desc: A ServiceDescriptor.
    """

    if not isinstance(service_desc, descriptor.ServiceDescriptor):
      raise TypeError('Expected instance of descriptor.ServiceDescriptor.')

    self._CheckConflictRegister(service_desc)
    self._service_descriptors[service_desc.full_name] = service_desc 

def _MakeServiceDescriptor(self, service_proto, service_index, scope,
                             package, file_desc):
    """Make a protobuf ServiceDescriptor given a ServiceDescriptorProto.

    Args:
      service_proto: The descriptor_pb2.ServiceDescriptorProto protobuf message.
      service_index: The index of the service in the File.
      scope: Dict mapping short and full symbols to message and enum types.
      package: Optional package name for the new message EnumDescriptor.
      file_desc: The file containing the service descriptor.

    Returns:
      The added descriptor.
    """

    if package:
      service_name = '.'.join((package, service_proto.name))
    else:
      service_name = service_proto.name

    methods = [self._MakeMethodDescriptor(method_proto, service_name, package,
                                          scope, index)
               for index, method_proto in enumerate(service_proto.method)]
    desc = descriptor.ServiceDescriptor(name=service_proto.name,
                                        full_name=service_name,
                                        index=service_index,
                                        methods=methods,
                                        options=_OptionsOrNone(service_proto),
                                        file=file_desc)
    self._CheckConflictRegister(desc)
    self._service_descriptors[service_name] = desc
    return desc 

def _MakeServiceDescriptor(self, service_proto, service_index, scope,
                             package, file_desc):
    """Make a protobuf ServiceDescriptor given a ServiceDescriptorProto.

    Args:
      service_proto: The descriptor_pb2.ServiceDescriptorProto protobuf message.
      service_index: The index of the service in the File.
      scope: Dict mapping short and full symbols to message and enum types.
      package: Optional package name for the new message EnumDescriptor.
      file_desc: The file containing the service descriptor.

    Returns:
      The added descriptor.
    """

    if package:
      service_name = '.'.join((package, service_proto.name))
    else:
      service_name = service_proto.name

    methods = [self._MakeMethodDescriptor(method_proto, service_name, package,
                                          scope, index)
               for index, method_proto in enumerate(service_proto.method)]
    desc = descriptor.ServiceDescriptor(name=service_proto.name,
                                        full_name=service_name,
                                        index=service_index,
                                        methods=methods,
                                        options=_OptionsOrNone(service_proto),
                                        file=file_desc)
    return desc 

def setUp(self):
    file_proto = descriptor_pb2.FileDescriptorProto(
        name='some/filename/some.proto',
        package='protobuf_unittest')
    message_proto = file_proto.message_type.add(
        name='NestedMessage')
    message_proto.field.add(
        name='bb',
        number=1,
        type=descriptor_pb2.FieldDescriptorProto.TYPE_INT32,
        label=descriptor_pb2.FieldDescriptorProto.LABEL_OPTIONAL)
    enum_proto = message_proto.enum_type.add(
        name='ForeignEnum')
    enum_proto.value.add(name='FOREIGN_FOO', number=4)
    enum_proto.value.add(name='FOREIGN_BAR', number=5)
    enum_proto.value.add(name='FOREIGN_BAZ', number=6)

    descriptor_pool = symbol_database.Default().pool
    descriptor_pool.Add(file_proto)
    self.my_file = descriptor_pool.FindFileByName(file_proto.name)
    self.my_message = self.my_file.message_types_by_name[message_proto.name]
    self.my_enum = self.my_message.enum_types_by_name[enum_proto.name]

    self.my_method = descriptor.MethodDescriptor(
        name='Bar',
        full_name='protobuf_unittest.TestService.Bar',
        index=0,
        containing_service=None,
        input_type=None,
        output_type=None)
    self.my_service = descriptor.ServiceDescriptor(
        name='TestServiceWithOptions',
        full_name='protobuf_unittest.TestServiceWithOptions',
        file=self.my_file,
        index=0,
        methods=[
            self.my_method
        ]) 

def AddServiceDescriptor(self, service_desc):
    """Adds a ServiceDescriptor to the pool.

    Args:
      service_desc: A ServiceDescriptor.
    """

    if not isinstance(service_desc, descriptor.ServiceDescriptor):
      raise TypeError('Expected instance of descriptor.ServiceDescriptor.')

    self._service_descriptors[service_desc.full_name] = service_desc