How to use the feast.core.CoreService_pb2.ListFeatureSetsRequest function in feast

def add_CoreServiceServicer_to_server(servicer, server):
  rpc_method_handlers = {
      'GetFeastCoreVersion': grpc.unary_unary_rpc_method_handler(
          servicer.GetFeastCoreVersion,
          request_deserializer=feast_dot_core_dot_CoreService__pb2.GetFeastCoreVersionRequest.FromString,
          response_serializer=feast_dot_core_dot_CoreService__pb2.GetFeastCoreVersionResponse.SerializeToString,
      ),
      'GetFeatureSet': grpc.unary_unary_rpc_method_handler(
          servicer.GetFeatureSet,
          request_deserializer=feast_dot_core_dot_CoreService__pb2.GetFeatureSetRequest.FromString,
          response_serializer=feast_dot_core_dot_CoreService__pb2.GetFeatureSetResponse.SerializeToString,
      ),
      'ListFeatureSets': grpc.unary_unary_rpc_method_handler(
          servicer.ListFeatureSets,
          request_deserializer=feast_dot_core_dot_CoreService__pb2.ListFeatureSetsRequest.FromString,
          response_serializer=feast_dot_core_dot_CoreService__pb2.ListFeatureSetsResponse.SerializeToString,
      ),
      'ListStores': grpc.unary_unary_rpc_method_handler(
          servicer.ListStores,
          request_deserializer=feast_dot_core_dot_CoreService__pb2.ListStoresRequest.FromString,
          response_serializer=feast_dot_core_dot_CoreService__pb2.ListStoresResponse.SerializeToString,
      ),
      'ApplyFeatureSet': grpc.unary_unary_rpc_method_handler(
          servicer.ApplyFeatureSet,
          request_deserializer=feast_dot_core_dot_CoreService__pb2.ApplyFeatureSetRequest.FromString,
          response_serializer=feast_dot_core_dot_CoreService__pb2.ApplyFeatureSetResponse.SerializeToString,
      ),
      'UpdateStore': grpc.unary_unary_rpc_method_handler(
          servicer.UpdateStore,
          request_deserializer=feast_dot_core_dot_CoreService__pb2.UpdateStoreRequest.FromString,
          response_serializer=feast_dot_core_dot_CoreService__pb2.UpdateStoreResponse.SerializeToString,

else:
                project = "*"

        if name is None:
            name = "*"

        if version is None:
            version = "*"

        filter = ListFeatureSetsRequest.Filter(
            project=project, feature_set_name=name, feature_set_version=version
        )

        # Get latest feature sets from Feast Core
        feature_set_protos = self._core_service_stub.ListFeatureSets(
            ListFeatureSetsRequest(filter=filter)
        )  # type: ListFeatureSetsResponse

        # Extract feature sets and return
        feature_sets = []
        for feature_set_proto in feature_set_protos.feature_sets:
            feature_set = FeatureSet.from_proto(feature_set_proto)
            feature_set._client = self
            feature_sets.append(feature_set)
        return feature_sets

"""
        self._connect_core()

        if project is None:
            if self.project is not None:
                project = self.project
            else:
                project = "*"

        if name is None:
            name = "*"

        if version is None:
            version = "*"

        filter = ListFeatureSetsRequest.Filter(
            project=project, feature_set_name=name, feature_set_version=version
        )

        # Get latest feature sets from Feast Core
        feature_set_protos = self._core_service_stub.ListFeatureSets(
            ListFeatureSetsRequest(filter=filter)
        )  # type: ListFeatureSetsResponse

        # Extract feature sets and return
        feature_sets = []
        for feature_set_proto in feature_set_protos.feature_sets:
            feature_set = FeatureSet.from_proto(feature_set_proto)
            feature_set._client = self
            feature_sets.append(feature_set)
        return feature_sets

Args:
      channel: A grpc.Channel.
    """
    self.GetFeastCoreVersion = channel.unary_unary(
        '/feast.core.CoreService/GetFeastCoreVersion',
        request_serializer=feast_dot_core_dot_CoreService__pb2.GetFeastCoreVersionRequest.SerializeToString,
        response_deserializer=feast_dot_core_dot_CoreService__pb2.GetFeastCoreVersionResponse.FromString,
        )
    self.GetFeatureSet = channel.unary_unary(
        '/feast.core.CoreService/GetFeatureSet',
        request_serializer=feast_dot_core_dot_CoreService__pb2.GetFeatureSetRequest.SerializeToString,
        response_deserializer=feast_dot_core_dot_CoreService__pb2.GetFeatureSetResponse.FromString,
        )
    self.ListFeatureSets = channel.unary_unary(
        '/feast.core.CoreService/ListFeatureSets',
        request_serializer=feast_dot_core_dot_CoreService__pb2.ListFeatureSetsRequest.SerializeToString,
        response_deserializer=feast_dot_core_dot_CoreService__pb2.ListFeatureSetsResponse.FromString,
        )
    self.ListStores = channel.unary_unary(
        '/feast.core.CoreService/ListStores',
        request_serializer=feast_dot_core_dot_CoreService__pb2.ListStoresRequest.SerializeToString,
        response_deserializer=feast_dot_core_dot_CoreService__pb2.ListStoresResponse.FromString,
        )
    self.ApplyFeatureSet = channel.unary_unary(
        '/feast.core.CoreService/ApplyFeatureSet',
        request_serializer=feast_dot_core_dot_CoreService__pb2.ApplyFeatureSetRequest.SerializeToString,
        response_deserializer=feast_dot_core_dot_CoreService__pb2.ApplyFeatureSetResponse.FromString,
        )
    self.UpdateStore = channel.unary_unary(
        '/feast.core.CoreService/UpdateStore',
        request_serializer=feast_dot_core_dot_CoreService__pb2.UpdateStoreRequest.SerializeToString,
        response_deserializer=feast_dot_core_dot_CoreService__pb2.UpdateStoreResponse.FromString,