<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:

def kill_workflow(self):
        '''Kills the workflow.

        See also
        --------
        :func:`tmserver.api.workflow.kill_workflow`
        :class:`tmlib.workflow.workflow.Workflow`
        '''
        logger.info('kill workflow of experiment "%s"', self.experiment_name)
        content = dict()
        url = self._build_api_url(
            '/experiments/{experiment_id}/workflow/kill'.format(
                experiment_id=self._experiment_id
            )
        )
        res = self._session.post(url)
        res.raise_for_status()