MembersOfRole
The MembersOfRole function takes one role name parameter and returns the locally assigned and inherited users and groups of a role that an object has (which are shown in the UI Responsibilities tab).
For the example above the membersOfRole('Role1') function returns 3 items for the Object1 object, inherited Group2 user group, locally assigned User1 user, and Group1 user group.
The MembersOfRole function can only appear in the SELECT list.