{"ast_node_type":"other","tokens":[{"end":92,"kind":"keyword","start":0,"text":"ConcreteConst,"}]}
        ConcreteConst, Const, ConstData, ConstScalar, ConstValue, DebruijnIndex, GenericArg,
    use crate::{
        InferenceVar, Interner, Lifetime, Ty, TyVariableKind, VariableKind,