{"ast_node_type":"other","tokens":[{"end":96,"kind":"keyword","start":0,"text":"Canonical,"}]}
    Canonical, DomainGoal, FnAbi, FnPointer, FnSig, Guidance, InEnvironment, Interner, Lifetime,
use crate::{
    Solution, Substitution, TraitEnvironment, Ty, TyBuilder, TyExt,