code: def __call__(cls, tp):
      tp = _type_to_typing(tp)
      return (
          tp
          if isinstance(tp, GenericTypeMeta) or isvariadic(tp)
          else cls[tp]
      )
  
imports: import functools
  import sys
  import typing
  import weakref
  import typing_extensions
  from multipledispatch.variadic import Variadic
  from multipledispatch.variadic import isvariadic
label_desc: Use image node_id 1 for calling the _RuntimeSubclassCheckMeta obj's underlying member method code with example usage: obj.__call__(cls, tp) and returns: unknown