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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 edit(self, resource):
 """Edit a tag. :param resource: :class:`tags.Tag <tags.Tag>` object :return: :class:`tags.Tag <tags.Tag>` object :rtype: tags.Tag """

        schema = TagSchema(only=('name', 'configs', 'devices', 'packages', 'results'))
        json = self.service.encode(schema, resource)

        schema = TagSchema()
        resp = self.service.edit(self.base, resource.name, json)
        return self.service.decode(schema, resp)