standardListQueryParameters is way too standard

[Etsija]

When starting to implement sorting-related stuff for the UI, I bumped into this:

"The listed fields must be supported by the endpoint" is way too vague for documenting an API endpoint properly. As a non-back-end specialist, I had to dig quite deep into the code to find out the fields by which the results of a certain list query can be sorted.

Could this function be changed into something, which actually prints out to the API docs, which are the sortable fields of an endpoint?