docstr: Yield `MatchVariable` instances.
docstr_tok: ["Yield","`","MatchVariable","`","instances","."]
code: def __iter__(self) -> Iterator[MatchVariable]:
      """
      Yield `MatchVariable` instances.
      """
      for varname, value, slice in self._tuples:
          yield MatchVariable(varname, value, slice)
  
imports: from __future__ import annotations
  import re
  from typing import Callable, Dict, Iterable, Iterator, Pattern
  from typing import Match
  from .regex_parser import AnyNode, Lookahead, Node, NodeSequence, Regex, Repeat, Variable, parse_regex, tokenize_regex
label_desc: Use image node_id 6 for calling the Variables obj's underlying member method code with example usage: obj.__iter__() without return types