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