class_docstr: Mixin for TypeVarLike defaults.
class_docstr_tok: ["Mixin","for","TypeVarLike","defaults","."]
code: def __init__(self, default):
      if isinstance(default, (tuple, list)):
          self.__default__ = tuple(
              (
                  typing._type_check(d, "Default must be a type")
                  for d in default
              )
          )
      elif default:
          self.__default__ = typing._type_check(
              default, "Default must be a type"
          )
      else:
          self.__default__ = None
  
imports: import abc
  import collections
  import collections.abc
  import functools
  import operator
  import sys
  import types
  import typing
label_desc: Use image node_id 1 to create a new _DefaultMixin object  with example: obj = _DefaultMixin(default)