- can :read, Node
- can [:read, :ways_for_node], Way
- can [:read, :relations_for_node, :relations_for_way, :relations_for_relation], Relation
- can [:history, :read], [OldNode, OldWay, OldRelation]
+ can :read, [Node, Way, Relation, OldNode, OldWay, OldRelation]