code: def add_multi_constructor(cls, tag_prefix, multi_constructor):
      if not "yaml_multi_constructors" in cls.__dict__:
          cls.yaml_multi_constructors = (
              cls.yaml_multi_constructors.copy()
          )
      cls.yaml_multi_constructors[tag_prefix] = multi_constructor
  
imports: from .error import *
  from .nodes import *
  import collections.abc, datetime, base64, binascii, re, sys, types
label_desc: Use image node_id 13 for calling the BaseConstructor obj's underlying member method code with example usage: obj.add_multi_constructor(cls, tag_prefix, multi_constructor) without return types