{
    "expr": "Account.Order.Product ~> $map(λ($prod, $index, $arr) { $index+1 & \"/\" & $count($arr) & \": \" & $prod.\"Product Name\" })",
    "dataset": "dataset5",
    "bindings": {},
    "result": [
        "1/4: Bowler Hat",
        "2/4: Trilby hat",
        "3/4: Bowler Hat",
        "4/4: Cloak"
    ]
}