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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 unregisterDataItem(self, path):
 """ Unregisters a data item that has been previously registered with the server's data store. Inputs: path - path to share folder Example: path = r"/fileShares/folder_share" print data.unregisterDataItem(path) """

        url = self._url + "/unregisterItem"
        params = {
            "f" : "json",
            "itempath" : path,
            "force":"true"
        }
        return self._post(url, param_dict=params,
                             securityHandler=self._securityHandler,
                             proxy_url=self._proxy_url,
                             proxy_port=self._proxy_port)