code: def partial_call(self, *args):
      return self.default
  
imports: from collections import defaultdict
  from multipledispatch.dispatcher import Dispatcher, expand_tuples
  from funsor.typing import Variadic, deep_type, get_origin, get_type_hints, typing_wrap
label_desc: Use image node_id 3 for calling the PartialDefault obj's underlying member method code with example usage: obj.partial_call() and returns: self