def __init__()

in src/application_stage.py [0:0]


    def __init__(self, scope: Construct, construct_id: str, branch: str, **kwargs) -> None:
        super().__init__(scope, construct_id, **kwargs)

        # - combines single constructs in src/ to one stack
        S3TriggerConstruct(self, f'S3Trigger-${branch}')