{"ast_node_type":"other","tokens":[{"end":64,"kind":"keyword","start":0,"text":"ProjectionElem::Subslice"}]}
            ProjectionElem::Subslice { from, to, from_end } => {
            ProjectionElem::Index(_) | ProjectionElem::ConstantIndex { .. } => Self::index_ty(ty),
                Self::subslice_ty(ty, *from, *to, *from_end)