Get cards of a particular collection functionality

[tuhinmallick]

As a user I want to get all the cards of the collection so that I can use the information to get a holistic idea about the cards.

Input : collection_slug
Output : response json ( needs to be checked )

[KonradUdoHannes]

Do we needs this as the functionality of the client? We have already get_items which just wraps the items endpoint. Items contain cards, collections, dashboard and maybe more. Our output also contains the type for each item, so we can very easily filter by cards only.

So I'm wondering whether we should always filter by cards making the method more specific. I would either do this or leave it as it is, but I would not add an additional method as that is too much clutter for the client in my opinion.