code: def test_register_kryo_type(self):
      self.execution_config.register_kryo_type(
          "org.apache.flink.runtime.state.StateBackendTestBase$TestPojo"
      )
  
      type_list = self.execution_config.get_registered_kryo_types()
  
      self.assertEqual(
          type_list,
          [
              "org.apache.flink.runtime.state.StateBackendTestBase$TestPojo"
          ],
      )
  
imports: from pyflink.datastream import StreamExecutionEnvironment
  from pyflink.common import ExecutionConfig, RestartStrategies, ExecutionMode, Configuration
  from pyflink.java_gateway import get_gateway
  from pyflink.testing.test_case_utils import PyFlinkTestCase
  from pyflink.util.java_utils import get_j_env_configuration
label_desc: Use image node_id 20 for calling the ExecutionConfigTests obj's underlying member method code with example usage: obj.test_register_kryo_type() without return types