code: def _get_field_names(cls) -> Set[str]:
      return {f.name for f in fields(cls)}
  
file_path: pytorch/torch/_export/serde/union.py
imports: import functools
  from dataclasses import fields
  from typing import Hashable, Set
label_desc: Use image node_id 1 for calling a global function with example usage: _get_field_names(cls) and returns: unknown