bedrock-samples/metadata/json_schemas/server/1.20.50/item/components/Fuel.json

{
    "$schema": "http://json-schema.org/draft-07/schema#",
    "$id": "3308324084",
    "x-format-version": "1.20.50",
    "x-minecraft-version": "1.21.100-beta.6",
    "title": "minecraft:fuel",
    "description": "Fuel item component allows this item to be used as fuel in a furnace to 'cook' other items.",
    "oneOf": [
        {
            "type": "number",
            "minimum": 0.05000000074505806
        },
        {
            "type": "object",
            "properties": {
                "duration": {
                    "description": "Amount of time, in seconds, this fuel will cook items.",
                    "type": "number",
                    "minimum": 0.05000000074505806
                }
            }
        }
    ]
}