code: def serve():
      args = parser.parse_args()
      server = grpc.server(futures.ThreadPoolExecutor(max_workers=10))
      greeter_grpc_fb.add_GreeterServicer_to_server(
          GreeterServicer(), server
      )
      server.add_insecure_port("[::]:" + args.port)
      server.start()
      server.wait_for_termination()
  
file_path: flatbuffers/grpc/examples/python/greeter/server.py
imports: from concurrent import futures
  import sys
  import argparse
  import grpc
  import flatbuffers
  from models import HelloReply, HelloRequest, greeter_grpc_fb
label_desc: Use image node_id 2 for calling a global function with example usage: serve() without return types