code: def loop(timeout=30.0, use_poll=False, map=None, count=None):
      if map is None:
          map = socket_map
  
      if use_poll and hasattr(select, "poll"):
          poll_fun = poll2
      else:
          poll_fun = poll
  
      if count is None:
          while map:
              poll_fun(timeout, map)
  
      else:
          while map and count > 0:
              poll_fun(timeout, map)
              count = count - 1
  
imports: import select
  import socket
  import sys
  import time
  import warnings
  import os
  from errno import EALREADY, EINPROGRESS, EWOULDBLOCK, ECONNRESET, EINVAL, ENOTCONN, ESHUTDOWN, EISCONN, EBADF, ECONNABORTED, EPIPE, EAGAIN, errorcode
label_desc: Use image node_id 8 for calling a global function with example usage: loop(timeout, use_poll, map, count) without return types