Define contstraints for DTOs contained in other DTOs

[BCGST]

I am working on a API project which has dtos which only appear inside other dtos. OpenAPITools do a great job a generating data based on these however I have found that in some cases I wish I could constrain the sub dtos data like you can with dtos that are associated with endpoint operations (POST, GET etc per DTO_MAPPING).

[robinmackaij]

Thanks for this request. From a first glance, this shouldn't be too hard to implement. RoboCon is coming up however, so I won't have time for this the coming few weeks. Hopefully I'll have some time before the end of Februari.

[robinmackaij]

On second glance, it wasn't so easy, but after a (long overdue) refactor I believe I have it working:
https://github.com/MarketSquare/robotframework-openapitools/tree/49_support_nesting_of_dtos_in_relations

Could you test with this branch and let me know if this works for you?
Note that it's based on the v1 release branch which has some breaking changes with regards to parameter names, but nothing too complex.