minecraft-assets/assets/minecraft/loot_tables/chests/jungle_temple_dispenser.json

{
    "pools": [
        {
            "rolls": {
                "min": 1,
                "max": 2
            },
            "entries": [
                {
                    "type": "item",
                    "name": "minecraft:arrow",
                    "functions": [
                        {
                            "function": "set_count",
                            "count": {
                                "min": 2,
                                "max": 7
                            }
                        }
                    ],
                    "weight": 30
                }
           ]
        }
    ]
}