def kill_application(self, app_id, user=""):
        """Kill an application.

        Parameters
        ----------
        app_id : str
            The id of the application to kill.
        user : str, optional
            The user to kill the application as. Requires the current user to
            have permissions to proxy as ``user``. Default is the current user.
        """
        self._call('kill', proto.KillRequest(id=app_id, user=user))
Kill an application.

        Parameters
        ----------
        app_id : str
            The id of the application to kill.
        user : str, optional
            The user to kill the application as. Requires the current user to
            have permissions to proxy as ``user``. Default is the current user.