<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def add_to_loader_class(cls, loader_class=None, tag=None, **kwargs):
 # type: (type(yaml.Loader), str, **str)-> YamlIncludeConstructor """ Create an instance of the constructor, and add it to the YAML `Loader` class :param loader_class: The `Loader` class add constructor to. .. attention:: This parameter **SHOULD** be a **class type**, **NOT** object. It's one of following: - :class:`yaml.BaseLoader` - :class:`yaml.UnSafeLoader` - :class:`yaml.SafeLoader` - :class:`yaml.Loader` - :class:`yaml.FullLoader` - :class:`yaml.CBaseLoader` - :class:`yaml.CUnSafeLoader` - :class:`yaml.CSafeLoader` - :class:`yaml.CLoader` - :class:`yaml.CFullLoader` :default: ``None``: - When :mod:`pyyaml` 3.*: Add to PyYAML's default `Loader` - When :mod:`pyyaml` 5.*: Add to `FullLoader` :type loader_class: type :param str tag: Tag's name of the include constructor. :default: ``""``: Use :attr:`DEFAULT_TAG_NAME` as tag name. :param kwargs: Arguments passed to construct function :return: New created object :rtype: YamlIncludeConstructor """

        if tag is None:
            tag = ''
        tag = tag.strip()
        if not tag:
            tag = cls.DEFAULT_TAG_NAME
        if not tag.startswith('!'):
            raise ValueError('`tag` argument should start with character "!"')
        instance = cls(**kwargs)
        if loader_class is None:
            if FullLoader:
                yaml.add_constructor(tag, instance, FullLoader)
            else:
                yaml.add_constructor(tag, instance)
        else:
            yaml.add_constructor(tag, instance, loader_class)
        return instance