@hikhvar
@Niklas_L The workflow (if/else, error handling,
branching, parallelism) is now declaration (written in YAML, or CDK):
https://docs.aws.amazon.com/step-functions/latest/dg/welcome.html#application
With implementation I mean source code that you author (e.g. data conversion,
fetching data from third-party services). You test via e2e tests.