fal-ai/workflow-utilities/pick-image-by-index

{
  "image": {
    "url": "https://storage.googleapis.com/falserverless/example_inputs/ltxv-image-input.jpg"
  },
  "images": [
    {
      "url": "https://storage.googleapis.com/falserverless/example_inputs/ltxv-image-input.jpg"
    }
  ]
}