in gym_http_client.py [0:0]
def env_monitor_start(self, instance_id, directory,
force=False, resume=False, video_callable=False):
route = '/v1/envs/{}/monitor/start/'.format(instance_id)
data = {'directory': directory,
'force': force,
'resume': resume,
'video_callable': video_callable}
self._post_request(route, data)