{"ast_node_type":"function","tokens":[{"end":88,"kind":"keyword","start":0,"text":"pub"}]}
    pub fn and<T: TypeVisitable<TyCtxt<'tcx>>>(self, value: T) -> ParamEnvAnd<'tcx, T> {
    /// Creates a pair of param-env and value for use in queries.
        ParamEnvAnd { param_env: self, value }