Returns information about all tracked long-running tasks.
        :param expand (string): OPTIONAL: A comma separated list of properties to expand on the tasks.
        :param start (int): OPTIONAL: The pagination start count.
        :param limit (int): OPTIONAL: The pagination return count limit.
        :param callback: OPTIONAL: The callback to execute on the resulting data, before the method returns.
                         Default: None (no callback, raw data returned).
        :return: The JSON data returned from the longtask endpoint,
                 or the results of the callback. Will raise requests.HTTPError on bad input, potentially.

def get_long_tasks(self, expand=None, start=None, limit=None, callback=None):
        """
        Returns information about all tracked long-running tasks.
        :param expand (string): OPTIONAL: A comma separated list of properties to expand on the tasks.
        :param start (int): OPTIONAL: The pagination start count.
        :param limit (int): OPTIONAL: The pagination return count limit.
        :param callback: OPTIONAL: The callback to execute on the resulting data, before the method returns.
                         Default: None (no callback, raw data returned).
        :return: The JSON data returned from the longtask endpoint,
                 or the results of the callback. Will raise requests.HTTPError on bad input, potentially.
        """
        params = {}
        if expand:
            params["expand"] = expand
        if start is not None:
            params["start"] = int(start)
        if limit is not None:
            params["limit"] = int(limit)
        return self._service_get_request("rest/api/longtask", params=params, callback=callback)