booking_item

{
    "item_id": 0,
    "id": 0,
    "quantity": 0,
    "tax_rate": "string",
    "deposit_cents": 0,
    "picked_up_quantity": 0,
    "pricing_tier": {
        "duration_value": 0,
        "price_cents": 0,
        "label": "string",
        "duration_unit": "weeks",
        "type": "dynamic"
    }
}