{"ast_node_type":"other","tokens":[{"end":51,"kind":"keyword","start":0,"text":"query"}]}
    query constness(key: DefId) -> hir::Constness {
    /// [^1]: Tuple struct/variant constructors, closures and free, associated and foreign functions.
        desc { |tcx| "checking if item is const: `{}`", tcx.def_path_str(key) }