arminhammer

### I tried this: The https://github.com/serverlessworkflow/specification/blob/main/dsl-reference.md#extension section states that the `before` and `after` types are of type `[map[string, task]]`, and the Rust SDK implements them as as `HashMap` https://github.com/serverlessworkflow/sdk-rust/blob/main/core/src/models/extension.rs#L17-L23: ```...