code: def setUp(self):
      self.env = StreamExecutionEnvironment.get_execution_environment()
  
      self.checkpoint_config = self.env.get_checkpoint_config()
  
file_path: flink/flink-python/pyflink/datastream/tests/test_check_point_config.py
imports: from pyflink.common import Duration
  from pyflink.datastream import CheckpointConfig, CheckpointingMode, ExternalizedCheckpointCleanup, StreamExecutionEnvironment
  from pyflink.java_gateway import get_gateway
  from pyflink.testing.test_case_utils import PyFlinkTestCase
label_desc: Use image node_id 1 for calling the CheckpointConfigTests obj's underlying member method code with example usage: obj.setUp() without return types