{
    "type": "minecraft:crafting_shaped",
    "key": {
      "i": {
        "tag": "c:ingots/iron"
      },
      "r": {
        "tag": "c:dusts/redstone"
      },
      "u": {
        "item": "mininggadgets:upgrade_empty"
      }
    },
    "pattern": [
      "iii",
      "rur",
      "iii"
    ],
    "result": {
      "item": "mininggadgets:modificationtable"
    }
  }