curl --request POST \
  --url http://localhost:8080/v1/images/variations \
  --header 'Content-Type: multipart/form-data' \
  --form 'model=<string>' \
  --form image='@example-file' \
  --form n=5 \
  --form size=256x256 \
  --form response_format=url \
  --form 'user=<string>' \
  --form 'fallbacks={
  "provider": "openai",
  "model": "<string>"
}'

{
  "id": "<string>",
  "created": 123,
  "model": "<string>",
  "data": [
    {
      "url": "<string>",
      "b64_json": "<string>",
      "revised_prompt": "<string>",
      "index": 123
    }
  ],
  "background": "<string>",
  "output_format": "png",
  "quality": "<string>",
  "size": "256x256",
  "usage": {
    "input_tokens": 123,
    "input_tokens_details": {
      "image_tokens": 123,
      "text_tokens": 123
    },
    "total_tokens": 123,
    "output_tokens": 123,
    "output_tokens_details": {
      "image_tokens": 123,
      "text_tokens": 123
    }
  },
  "extra_fields": {
    "request_type": "<string>",
    "provider": "openai",
    "model_requested": "<string>",
    "model_deployment": "<string>",
    "latency": 123,
    "chunk_index": 123,
    "raw_request": {},
    "raw_response": {},
    "cache_debug": {
      "cache_hit": true,
      "cache_id": "<string>",
      "hit_type": "<string>",
      "provider_used": "<string>",
      "model_used": "<string>",
      "input_tokens": 123,
      "threshold": 123,
      "similarity": 123
    }
  }
}