Docs for 2.0.0a3 and implementation disagree on how forms are described in domain

[federicotdn]

Tested on Rasa 2.0.0a3.

There might be a problem with how forms are defined in the domain in Rasa 2.0.0. The documentation shows the following example:

forms:
  your_form:
    age:
    - type: from_entity
      entity: age

But if I try using that, it fails with:

2020-09-01 14:44:47 ERROR    pykwalify.core  - validation.invalid
2020-09-01 14:44:47 ERROR    pykwalify.core  -  --- All found errors ---
2020-09-01 14:44:47 ERROR    pykwalify.core  - ["Value '{'your_form': {'age': [{'type': 'from_entity', 'entity': 'age'}]}}' is not a list. Value path: '/forms'"]

However changing forms from a map to a list of objects works:

forms:
- your_form:
    age:
    - type: from_entity
      entity: age

It is not clear if the implementation is correct, or the docs. The schema described by the docs is easier to handle and use programmatically.

[wochinge]

@federicotdn Do you want to keep it in the loop? ProdSquad worked on this as part of rules.

[federicotdn]

Not necessary! Feel free to move it.