code: def close(self) -> None:
      self._da.save_binary(self.store_path)
      super().close()
  
file_path: jina/tests/k8s/test-stateful-executor/stateful_executor.py
imports: import os
  from jina import Executor, requests, DocumentArray
label_desc: Use image node_id 4 for calling the StatefulExecutor obj's underlying member method code with example usage: obj.close() without return types