code: def __repr__(self):
      if not self.map:
          return "%s()" % (self.__class__.__name__,)
      return "%s(%r)" % (self.__class__.__name__, list(self.map.keys()))
  
imports: from collections import OrderedDict
  from collections.abc import MutableSet
  from typing import Any, Callable
  from .basic import Basic
  from .sorting import default_sort_key, ordered
  from .sympify import _sympify, sympify, _sympy_converter, SympifyError
  from sympy.core.kind import Kind
  from sympy.utilities.iterables import iterable
  from sympy.utilities.misc import as_int
label_desc: Use image node_id 8 for calling the OrderedSet obj's underlying member method code with example usage: obj.__repr__() and returns: unknown, unknown