def remove_follower(self, follower):
        if self.followers in follower:
            self.followers.remove(follower)
            self.store.pull_one_in_fields(self, {'followers':follower})
            [pa.decrease() for pa in self.pandas]
            return True
        else:
            logger.info('user {} is not a follower of {}@{}'.format(follower, self.name, self.crcreator))
            return False
dataset/ETHPy150Open xumiao/pymonk/monk/core/turtle.py/Turtle.remove_follower/swapped operands of `in`