class_docstr: Enum representing special args to ``load()``.
  
  FULL: used to request all attributes
  DEFAULT: used to request the default attribute
class_docstr_tok: ["Enum","representing","special","args","to","``","load","(",")","``",".","FULL",":","used","to","request","all","attributes","DEFAULT",":","used","to","request","the","default","attribute"]
docstr: Returns true if ``val`` is a ``ParamArg``, or one
  of its values.
docstr_tok: ["Returns","true","if","``","val","``","is","a","``","ParamArg","``",",","or","one","of","its","values","."]
code: def is_arg(cls, val: Union["ParamArg", str]) -> bool:
      """Returns true if ``val`` is a ``ParamArg``, or one
      of its values."""
      return isinstance(val, ParamArg) or (
          isinstance(val, str) and val in cls.values()
      )
  
file_path: pennylane/pennylane/data/data_manager/params.py
imports: import enum
  import typing
  from functools import lru_cache
  from typing import Any, Dict, FrozenSet, Iterable, List, Tuple, Union
label_desc: Use image node_id 2 for calling the ParamArg obj's underlying member method code with example usage: obj.is_arg(cls, val) and returns: unknown