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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 version(self):
 """ This attribute retrieve the API version. '1.0.0' """

        request_params = dict(self.request_params)
        request_url = str(self.request_url)

        result = self.do_http_request(
            'get',
            request_url,
            data=request_params,
            custom_header=str(self.etiquette)
        ).json()

        return result['message-version']