class_docstr: Interface exported by the server. 
code: def SayHello(self, request, context):
      context.set_code(grpc.StatusCode.UNIMPLEMENTED)
      context.set_details("Method not implemented!")
      raise NotImplementedError("Method not implemented!")
  
file_path: flatbuffers/grpc/examples/python/greeter/models/greeter_grpc_fb.py
imports: import grpc
label_desc: Use image node_id 1 for calling the GreeterServicer obj's underlying member method code with example usage: obj.SayHello(request, context) without return types