code: def __repr__(self):
      return "%s(%s)" % (
          self.__class__.__name__,
          ", ".join("%s=%r" % (k, v) for k, v, _ in self._tuples),
      )
  
imports: from __future__ import unicode_literals
  import re
  from six.moves import range
  from .regex_parser import Any, Sequence, Regex, Variable, Repeat, Lookahead
  from .regex_parser import parse_regex, tokenize_regex
label_desc: Use image node_id 2 for calling the Variables obj's underlying member method code with example usage: obj.__repr__() and returns: unknown