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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 updateAppInfo(self, appInfo):
 """ This operation allows you to update the OAuth-specific properties associated with an application. Use the Get App Info operation to obtain the existing OAuth properties that can be edited. """

        params = {"f" : "json",
                  "appInfo" : appInfo}
        url = self._url + "/oauth/updateAppInfo"
        return self._post(url=url,
                          param_dict=params,
                          proxy_url=self._proxy_url,
                          proxy_port=self._proxy_port)