minecraft-bedrock-json-schemas/source/resource/ui/elements/properties/clip_direction.json

{
  "title": "Clip Direction",
  "description": "The direction that the element will be clipped in.",
  "anyOf": [
    {
      "enum": ["left", "right", "top", "bottom"]
    },
    {
      "$ref": "../../general/item_ref.json"
    }
  ]
}