code: def test_follow(self):
      ar = self.view.apply_async(lambda: 1)
      ar.get()
      ars = []
      first_id = ar.engine_id
  
      self.view.follow = ar
      for i in range(5):
          ars.append(self.view.apply_async(lambda: 1))
      self.view.wait(ars)
      for ar in ars:
          assert ar.engine_id == first_id
  
imports: import time
  from itertools import count
  import pytest
  import ipyparallel
  from ipyparallel import error
  from .clienttest import ClusterTestCase, crash, raises_remote
label_desc: Use image node_id 19 for calling the TestLoadBalancedView obj's underlying member method code with example usage: obj.test_follow() without return types