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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 tags(self):
 """Returns a dictionary that lists all available tags that can be used for further filtering """

        ret = {}
        for typ in _meta_fields_twig:
            if typ in ['uniqueid', 'plugin', 'feedback', 'fitting', 'history', 'twig', 'uniquetwig']:
                continue

            k = '{}s'.format(typ)
            ret[k] = getattr(self, k)

        return ret