{"ast_node_type":"variable","tokens":[{"end":38,"kind":"keyword","start":0,"text":"let"}]}
                    let projected_ty =
                    let mut subslice = cg_base.project_index(bx, bx.cx().const_usize(from));
                        PlaceTy::from_ty(cg_base.layout.ty).projection_ty(tcx, *elem).ty;