{"ast_node_type":"other","tokens":[{"end":66,"kind":"keyword","start":0,"text":"GenericKind::Placeholder(ref"}]}
            GenericKind::Placeholder(ref p) => write!(f, "{p:?}"),
            GenericKind::Param(ref p) => write!(f, "{p:?}"),
            GenericKind::Alias(ref p) => write!(f, "{p:?}"),