ActuallyAdditions/src/generated/resources/data/actuallyadditions/recipes/travelers_sack.json

{
  "type": "minecraft:crafting_shaped",
  "pattern": [
    "SLS",
    "SCS",
    "LVL"
  ],
  "key": {
    "S": {
      "tag": "forge:string"
    },
    "L": {
      "tag": "forge:leather"
    },
    "C": {
      "tag": "forge:chests/wooden"
    },
    "V": {
      "item": "actuallyadditions:void_crystal_block"
    }
  },
  "result": {
    "item": "actuallyadditions:travelers_sack"
  }
}