def METHOD_NAME(self, token="new_token"):
    credentials = Credentials(
        token=token,
        refresh_token="refresh_token",
        id_token="id_token",
        token_uri="token_uri",
        client_id="client_id",
        client_secret="client_secret",
        scopes="scopes",
        expiry=datetime(2020, 1, 1)
    )
    return credentials