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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def add_tags(self, tags):

 """ add a tag or tags to a Feed """


        if isinstance(tags, (str, unicode)):
            tags = [tags]

        objs = object_session(self)
        tmps = [FeedTag(tag=t, feed=self) for t in tags]
        objs.add_all(tmps)
        objs.commit()