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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 put(self, request, uri):
 """ Publish versioned uri. JSON Response: {uri: x, content: y} """

        uri = self.decode_uri(uri)
        node = cio.publish(uri)

        if not node:
            raise Http404

        return self.render_to_json(node)