Create-Design-n-Decor/src/generated/resources/assets/design_decor/blockstates/copper_railing.json

{
  "multipart": [
    {
      "apply": {
        "model": "design_decor:block/copper_railing/block_railing"
      },
      "when": {
        "north": "true"
      }
    },
    {
      "apply": {
        "model": "design_decor:block/copper_railing/block_railing",
        "y": 90
      },
      "when": {
        "east": "true"
      }
    },
    {
      "apply": {
        "model": "design_decor:block/copper_railing/block_railing",
        "y": 180
      },
      "when": {
        "south": "true"
      }
    },
    {
      "apply": {
        "model": "design_decor:block/copper_railing/block_railing",
        "y": 270
      },
      "when": {
        "west": "true"
      }
    }
  ]
}