code: def __init__(self, tokens_per_request):
      self._tokens_per_request = tokens_per_request
  
imports: import grpc
  from ray.serve._private.benchmarks.streaming._grpc import test_server_pb2, test_server_pb2_grpc
label_desc: Use image node_id 1 to create a new TestGRPCServer object from inherited base classes: test_server_pb2_grpc with example: obj = TestGRPCServer(tokens_per_request)