class_docstr: Store models in cloud and fetch them when needed.
class_docstr_tok: ["Store","models","in","cloud","and","fetch","them","when","needed","."]
docstr: Uploads a model persisted in the `target_dir` to cloud storage.
docstr_tok: ["Uploads","a","model","persisted","in","the","`","target_dir","`","to","cloud","storage","."]
code: def _persist_tar(self, filekey: Text, tarname: Text) -> None:
      """Uploads a model persisted in the `target_dir` to cloud storage."""
      raise NotImplementedError
  
imports: import abc
  import logging
  import os
  import shutil
  from typing import Optional, Text, Tuple, TYPE_CHECKING
  import rasa.shared.utils.common
  import rasa.utils.common
label_desc: Use image node_id 4 for calling the Persistor obj's underlying member method code with example usage: obj._persist_tar(filekey, tarname) without return types