bedrock-samples/behavior_pack/loot_tables/chests/underwater_ruin_small.json

{
    "pools": [
        {
            "rolls": {
                "min": 2,
                "max": 8
            },
            "entries": [
                {
                    "type": "item",
                    "name": "minecraft:coal",
                    "weight": 10,
                    "functions": [
                        {
                            "function": "minecraft:set_count",
                            "count": {
                                "min": 1,
                                "max": 4
                            }
                        }
                    ]
                },
                {
                    "type": "item",
                    "name": "minecraft:stone_axe",
                    "weight": 2
                },
                {
                    "type": "item",
                    "name": "minecraft:rotten_flesh",
                    "weight": 5
                },
                {
                    "type": "item",
                    "name": "minecraft:emerald",
                    "weight": 1
                },
                {
                    "type": "item",
                    "name": "minecraft:wheat",
                    "weight": 10,
                    "functions": [
                        {
                            "function": "minecraft:set_count",
                            "count": {
                                "min": 2,
                                "max": 3
                            }
                        }
                    ]
                }
            ]
        },
        {
            "rolls": 1,
            "entries": [
                {
                    "type": "item",
                    "name": "minecraft:leather_chestplate",
                    "weight": 1
                },
                {
                    "type": "item",
                    "name": "minecraft:golden_helmet",
                    "weight": 1
                },
                {
                    "type": "item",
                    "name": "minecraft:fishing_rod",
                    "weight": 5,
                    "functions": [
                        {
                            "function": "enchant_randomly"
                        }
                    ]
                },
                {
                    "type": "item",
                    "name": "minecraft:map",
                    "weight": 5,
                    "functions": [
                        {
                            "function": "exploration_map",
                            "destination": "buriedtreasure"
                        }
                    ]
                }
            ]
        }
    ]
}