class_docstr: Parent class for configurations of training backend.
class_docstr_tok: ["Parent","class","for","configurations","of","training","backend","."]
code: def backend_cls(self):
      return Backend
  
file_path: ray/python/ray/train/backend.py
imports: import logging
  from typing import TypeVar
  from ray.train._internal.utils import Singleton
  from ray.train._internal.worker_group import WorkerGroup
  from ray.util.annotations import DeveloperAPI
  from ray.widgets import make_table_html_repr
label_desc: Use image node_id 1 for calling the BackendConfig obj's underlying member method code with example usage: obj.backend_cls() and returns: Backend