{"ast_node_type":"other","tokens":[{"end":86,"kind":"keyword","start":0,"text":"self,"}]}
    self, AdtKind, CanonicalUserType, GenericArgsRef, GenericParamDefKind, IsIdentity,
use rustc_middle::ty::{
    SizedTraitKind, Ty, TyCtxt, TypeFoldable, TypeVisitable, TypeVisitableExt, UserArgs,