How to validate slot name phone-number of duckling

Rasa Open Source
1

following: http://rasa.com/docs/rasa/core/forms/

i want validate form, i will write validate for only slot like validate_{slot-name} . then function like validate_phone-number then error .

please help me

2

could you post the error here please

3

ah .I have already resolved it. But can you check for me this bug ?

@Ghostvv