old_contents: '''
  System tests for `jenkinsapi.jenkins` module.
  '''
  import time
  import logging
  import unittest
  from jenkinsapi.jenkins import Jenkins
  from jenkinsapi_tests.systests.base import BaseSystemTest
  from jenkinsapi_tests.test_utils.random_strings import random_string
  
  log = logging.getLogger(__name__)
  
  
  class TestNodes(BaseSystemTest):
      def test_invoke_job_parameterized(self):
          node_name = random_string()
          J = Jenkins('http://localhost:8080')
          J.create_node(node_name)
          self.assertTrue(J.has_node(node_name))
  
          N = J.get_node(node_name)
          self.assertEquals(N.baseurl, J.get_node_url(node_name))
  
          J.delete_node(node_name)
          self.assertFalse(J.has_node(node_name))
  
  if __name__ == '__main__':
      logging.basicConfig()
      unittest.main()
  
new_contents: '''
  System tests for `jenkinsapi.jenkins` module.
  '''
  import logging
  import unittest
  from jenkinsapi.jenkins import Jenkins
  from jenkinsapi_tests.systests.base import BaseSystemTest
  from jenkinsapi_tests.test_utils.random_strings import random_string
  
  log = logging.getLogger(__name__)
  
  
  class TestNodes(BaseSystemTest):
      def test_invoke_job_parameterized(self):
          node_name = random_string()
          J = Jenkins('http://localhost:8080')
          J.create_node(node_name)
          self.assertTrue(J.has_node(node_name))
  
          N = J.get_node(node_name)
          self.assertEquals(N.baseurl, J.get_node_url(node_name))
  
          J.delete_node(node_name)
          self.assertFalse(J.has_node(node_name))
  
  if __name__ == '__main__':
      logging.basicConfig()
      unittest.main()
  
subject: Remove redundant import