{"ast_node_type":"other","tokens":[{"end":76,"kind":"keyword","start":0,"text":"#[derive(TyEncodable,"}]}
#[derive(TyEncodable, TyDecodable, HashStable, TypeVisitable, TypeFoldable)]
#[derive(Copy, Clone, Debug, Eq, PartialEq, Hash)]
pub enum ConstraintCategory<'tcx> {