docs: def stop_host(self, config_file):
          """
          Stops a managed host specified by `config_file`.
          """
          res = self.send_json_request('host/stop', data={'config': config_file})
  
          if res.status_code != 200:
              raise UnexpectedResponse(
                  'Attempted to stop a JSHost. Response: {res_code}: {res_text}'.format(
                      res_code=res.status_code,
                      res_text=res.text,
                  )
              )
  
          return res.json()