{"ast_node_type":"other","tokens":[{"end":57,"kind":"keyword","start":0,"text":"(Try)"}]}
    (Try)            => { exp!(@kw, Try,        KwTry) };
    (Trait)          => { exp!(@kw, Trait,      KwTrait) };
    (Type)           => { exp!(@kw, Type,       KwType) };