code: def test_remove_config(self):
      conf = Configuration()
      conf.set_string("k1", "v1")
      conf.set_integer("k2", 1)
  
      self.assertTrue(conf.contains_key("k1"))
      self.assertTrue(conf.contains_key("k2"))
  
      self.assertTrue(conf.remove_config("k1"))
      self.assertFalse(conf.remove_config("k1"))
  
      self.assertFalse(conf.contains_key("k1"))
  
      conf.remove_config("k2")
  
      self.assertFalse(conf.contains_key("k2"))
  
file_path: flink/flink-python/pyflink/common/tests/test_configuration.py
imports: from copy import deepcopy
  from pyflink.common import Configuration
  from pyflink.testing.test_case_utils import PyFlinkTestCase
label_desc: Use image node_id 9 for calling the ConfigurationTests obj's underlying member method code with example usage: obj.test_remove_config() without return types