def logout(self):
        """
        Log out, revoking the access tokens
        and forgetting the login details if they were given.
        """

        self.revoke_refresh_token()
        self.revoke_access_token()

        self._username, self._password = None, None
def logout ( self ) : self . revoke_refresh_token ( ) self . revoke_access_token ( ) self . _username , self . _password = None , None
Log out, revoking the access tokens
        and forgetting the login details if they were given.