code: def setUp(self) -> None:
      self.t_env = TableEnvironment.create(
          EnvironmentSettings.in_batch_mode()
      )
  
file_path: flink/flink-python/pyflink/table/tests/test_set_operation.py
imports: from pyflink.table import TableEnvironment, EnvironmentSettings
  from pyflink.testing.test_case_utils import PyFlinkTestCase
label_desc: Use image node_id 1 for calling the StreamTableSetOperationTests obj's underlying member method code with example usage: obj.setUp() without return types