def __init__(self, token_path=None, token_filename=None):
super().__init__()<EOL>if not isinstance(token_path, Path):<EOL><INDENT>token_path = Path(token_path) if token_path else Path()<EOL><DEDENT>token_filename = token_filename or '<STR_LIT>'<EOL>self.token_path = token_path / token_filename<EOL>
Init Backend
:param token_path str or Path: the path where to store the token
:param token_filename str: the name of the token file