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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 addPhoto(self, photo):
 """Add a photo to this set. photo - the photo """

        method = 'flickr.photosets.addPhoto'

        _dopost(method, auth=True, photoset_id=self.id, photo_id=photo.id)

        self.__count += 1
        return True