{"ast_node_type":"other","tokens":[{"end":71,"kind":"keyword","start":0,"text":"ast::GenericParamKind::Type"}]}
            ast::GenericParamKind::Type { default } => *default = None,
            ast::GenericParamKind::Const { default, .. } => *default = None,
            ast::GenericParamKind::Lifetime => {}