[ Class( Class { start: ( 3, 1, ), end: ( 5, 1, ), name: Identifier { start: ( 3, 7, ), name: "foo", end: ( 3, 11, ), }, extends: None, implements: None, attributes: [], members: [ TraitUsage( TraitUsage { traits: [ Identifier { start: ( 4, 9, ), name: "a", end: ( 4, 10, ), }, Identifier { start: ( 4, 12, ), name: "b", end: ( 4, 13, ), }, ], adaptations: [], }, ), ], }, ), ]