class_docstr: Abstract base class for TensorBoard fetchers.
  
  Syncs TensorBoard files from remote file blob stores.
docstr: Iterates over all files that need to be fetched
docstr_tok: ["Iterates","over","all","files","that","need","to","be","fetched"]
code: def list_all_generator(self) -> Generator[str, None, None]:
      """Iterates over all files that need to be fetched"""
      for storage_path in self.storage_paths:
          for filepath in self._list(storage_path):
              yield filepath
  
file_path: determined/harness/determined/tensorboard/fetchers/base.py
imports: import abc
  import datetime
  from typing import Any, Callable, Dict, Generator, List
label_desc: Use image node_id 4 for calling the Fetcher obj's underlying member method code with example usage: obj.list_all_generator() without return types