Set the subsequent API calls to the user provided

        :param user: User id or username to change to, None to return to the logged user
        :return: Nothing

def setsudo(self, user=None):
        """
        Set the subsequent API calls to the user provided

        :param user: User id or username to change to, None to return to the logged user
        :return: Nothing
        """
        if user is None:
            try:
                self.headers.pop('SUDO')
            except KeyError:
                pass
        else:
            self.headers['SUDO'] = user