{"ast_node_type":"function","tokens":[{"end":99,"kind":"keyword","start":0,"text":"pub"}]}
    pub fn const_param(&'tcx self, param: ParamConst, tcx: TyCtxt<'tcx>) -> &'tcx GenericParamDef {
    /// Returns the `GenericParamDef` associated with this `ParamConst`.
        let param = self.param_at(param.index as usize, tcx);