class_docstr: Optimizers factory.
code: def names(cls) -> List[str]:
      return sorted(cls._optimizers.keys())
  
imports: from functools import partial
  from typing import Any, List
  import bitsandbytes
  from torch import optim
label_desc: Use image node_id 1 for calling the Optimizers obj's underlying member method code with example usage: obj.names(cls) and returns: sorted