{"ast_node_type":"other","tokens":[{"end":70,"kind":"keyword","start":0,"text":"sym::unchecked_mul"}]}
                            sym::unchecked_mul => BinOp::MulUnchecked,
                            sym::unchecked_sub => BinOp::SubUnchecked,
                            sym::unchecked_div => BinOp::Div,