ExtraHoppers/src/main/resources/data/extrahoppers/recipes/invert_gold_hopper.json

{
  "type": "minecraft:crafting_shapeless",
  "ingredients": [
    {
      "item": "extrahoppers:gold_hopper"
    }
  ],
  "result": {
    "item": "extrahoppers:inverted_gold_hopper"
  }
}