@type t() :: %ExBifrost.Model.OpenaiCreateImageRequest{
  fallbacks: [String.t()] | nil,
  model: String.t(),
  n: integer() | nil,
  prompt: String.t(),
  quality: String.t() | nil,
  response_format: String.t() | nil,
  size: String.t() | nil,
  stream: boolean() | nil,
  style: String.t() | nil,
  user: String.t() | nil
}