{"ast_node_type":"other","tokens":[{"end":50,"kind":"keyword","start":0,"text":"#[derive(HashStable,"}]}
#[derive(HashStable, TypeFoldable, TypeVisitable)]
#[derive(Copy, Clone, Debug, PartialEq, Eq, Hash, TyEncodable, TyDecodable)]
pub struct UserArgs<'tcx> {