code: def receive():
      """Reads data from channel."""
      line = __channel_in.readline()[:-1]
      if not line:
          raise EOFError("Unexpected end of communication.")
      return line
  
imports: from __future__ import print_function
  import json
  import sys
  import socket
  import itertools
  from .None import functions
  from .None import parallel
  import math
  import multiprocessing
  import threading
label_desc: Use image node_id 7 for calling a global function with example usage: receive() and returns: line