How to use slot_was_set condition for and-ing and checking slots being set in stories?

Rasa Open Source
1

Example1

- slot_was_set:
  - product : x
- slot_was_set:
  - product : rasa

Example2

- slot_was_set:
  - product : x
  - product : rasa

Example3

- slot_was_set:
  - slot_1 : x
  - slot_2 : rasa

Example4

- slot_was_set:
  - slot_1 : x
- slot_was_set:
  - slot_2 : rasa

Which one of these is a correct approach and what does it do if it is correct?

2

That`s a good question!

I looked for a reference, and I couldn`t find any pattern about this at the docs. In my projects, I use the Example number 3 for checking slots, as it is more human-readable than Example 4.