{"ast_node_type":"other","tokens":[{"end":71,"kind":"keyword","start":0,"text":"GenericArgData::Lifetime(lt)"}]}
            GenericArgData::Lifetime(lt) => lt.inference_var(Interner),
            GenericArgData::Ty(ty) => ty.inference_var(Interner),
            GenericArgData::Const(c) => c.inference_var(Interner),