{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "title": "ImageBlockParam",
  "type": "object",
  "description": "An image content block. Supports base64-encoded or URL-referenced images.",
  "properties": {
    "type": {
      "type": "string"
    },
    "source": {
      "type": "object",
      "description": "The source of the image."
    }
  }
}