class_docstr: Flags that map to parsed keys/namespaces.
class_docstr_tok: ["Flags","that","map","to","parsed","keys\/namespaces","."]
code: def add_pending(self, key: Key, flag: int) -> None:
      self._pending_flags.add((key, flag))
  
imports: from __future__ import annotations
  from collections.abc import Iterable
  import string
  from types import MappingProxyType
  from typing import Any, BinaryIO, NamedTuple
  from ._re import RE_DATETIME, RE_LOCALTIME, RE_NUMBER, match_to_datetime, match_to_localtime, match_to_number
  from ._types import Key, ParseFloat, Pos
label_desc: Use image node_id 2 for calling the Flags obj's underlying member method code with example usage: obj.add_pending(key, flag) without return types