code: def stream_div(comm=None, x=None, y=None):
      return x / y
  
imports: from __future__ import annotations
  import asyncio
  import contextlib
  import os
  import random
  import socket
  import sys
  import threading
  import time
  import weakref
  from unittest import mock
  import pytest
  from tornado.ioloop import IOLoop
  import dask
  from distributed.batched import BatchedSend
  from distributed.comm.core import CommClosedError
  from distributed.comm.registry import backends
  from distributed.comm.tcp import TCPBackend, TCPListener
  from distributed.core import AsyncTaskGroup, AsyncTaskGroupClosedError, ConnectionPool, Server, Status, _expects_comm, clean_exception, coerce_to_address, connect, pingpong, rpc, send_recv
  from distributed.metrics import time
  from distributed.protocol import to_serialize
  from distributed.protocol.compression import compressions
  from distributed.utils import get_ip, get_ipv6, wait_for
  from distributed.utils_test import assert_can_connect, assert_can_connect_from_everywhere_4, assert_can_connect_from_everywhere_4_6, assert_can_connect_from_everywhere_6, assert_can_connect_locally_4, assert_can_connect_locally_6, assert_cannot_connect, captured_logger, gen_cluster, gen_test, has_ipv6, inc, throws, tls_security
label_desc: Use image node_id 5 for calling a global function with example usage: stream_div(comm, x, y) and returns: unknown