code: def Context(self):
      if self.green:
          return gzmq.Context
      else:
          return zmq.Context
  
imports: import sys
  import time
  from threading import Thread
  from unittest import TestCase
  from pytest import mark
  import zmq
  from zmq.utils import jsonapi
label_desc: Use image node_id 1 for calling the BaseZMQTestCase obj's underlying member method code with example usage: obj.Context() and returns: gzmq, zmq