Description / Steps to reproduce / Feature proposal

1. lb4 example, then pick the Todo app.
2. install it and get it running.
3. visit http://localhost:3000/openapi.yaml
4. paste the yaml within http://editor.swagger.io

Current Behavior

get errors:

Expected Behavior

don't get errors :)