in assets/functions/state_topic_subscription/app.py [0:0]
def trigger_state_machine():
state_machine_arn = os.environ['ml_pipeline_trigger_state_machine']
running_executions = client.list_executions(
stateMachineArn=state_machine_arn,
statusFilter='RUNNING',
maxResults=10
)
if not running_executions['executions']:
print('start new execution')
boto3 \
.client('stepfunctions') \
.start_execution(stateMachineArn=state_machine_arn)
else:
print('state machine already running.')