curl --request POST \
  --url https://tokens.flex.ai/v1/images/generations \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "model": "black-forest-labs/FLUX.1-schnell",
  "prompt": "<string>",
  "n": 1,
  "size": "1024x1024",
  "response_format": "b64_json"
}
'

{
  "created": 123,
  "data": [
    {
      "b64_json": "<string>"
    }
  ]
}