@classmethod<EOL><INDENT>def register(cls, origin_type):<DEDENT>
def decorator(tracked_type):<EOL><INDENT>"""<STR_LIT>"""<EOL>cls._type_mapping[origin_type] = tracked_type<EOL>return tracked_type<EOL><DEDENT>return decorator<EOL>
Decorator for mutation tracker registration.

        The provided `origin_type` is mapped to the decorated class such that
        future calls to `convert()` will convert the object of `origin_type`
        to an instance of the decorated class.