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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 process_hashes(self, body, allow_create=False):
 """Process any hashes mentioned and push them to related topics. :arg body: Body of the comment to check for hashes and push out. :arg allow_create=False: Whether to allow creating new topics from hash tag mentions. ~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~- PURPOSE: Look for hashtags matching self.hashtag_re and when found, add comment from body to those topics. """

        hash_re = re.compile(self.hashtag_re)
        hashes = hash_re.findall(body)
        done = {self.topic.lower(): True}
        for mention in hashes:
            mention = mention.strip('#')
            if mention.lower() in done:
                continue  # Do not duplicate hash mentions
            new_thread = self.__class__(
                owner=self.owner, realm=self.realm, topic=mention,
                user=self.user, token=self.token)
            my_comment = '# Hashtag copy from %s:\n%s' % (self.topic, body)
            new_thread.add_comment(
                my_comment, allow_create=allow_create,
                allow_hashes=False)  # allow_hashes=False to prevent inf loop
            done[mention.lower()] = True