{"ast_node_type":"other","tokens":[{"end":68,"kind":"keyword","start":0,"text":"\"sub_with_overflow\""}]}
                    "sub_with_overflow" => lhs.overflowing_sub(rhs),
                    "add_with_overflow" => lhs.overflowing_add(rhs),
                    "mul_with_overflow" => lhs.overflowing_mul(rhs),