code: def say_many_hellos(stub, hello_request):
      greetings = stub.SayManyHellos(hello_request)
      for greeting in greetings:
          r = HelloReply.HelloReply.GetRootAs(greeting)
          print(r.Message())
  
imports: 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: say_many_hellos(stub, hello_request) without return types