class_docstr: Weight rules.
docstr: Return all weight rules.
code: def all_weight_rules(cls) -> set[str]:
      """Return all weight rules."""
      return set(cls.__members__.values())
  
file_path: airflow/airflow/utils/weight_rule.py
imports: from __future__ import annotations
  from enum import Enum
  from airflow.compat.functools import cache
label_desc: Use image node_id 2 for calling the WeightRule obj's underlying member method code with example usage: obj.all_weight_rules(cls) and returns: set