Represents a resolve_argument declaration in the AshGrant DSL.
Declares that an action argument should be auto-populated from the resource's
own relationships so that argument-based scopes (e.g., ^arg(:center_id))
evaluate correctly without the scope itself having to traverse relationships.
Fields
:name— the argument name:from_path— list of atoms walking relationships to the leaf attribute (intermediates must be belongs_to, leaf must be an attribute):for_actions— optional list of action names; defaults to all write actions