@type t() :: %ExBifrost.Model.VideoGenerationRequest{
  audio: boolean() | nil,
  fallbacks: [ExBifrost.Model.Fallback.t()] | nil,
  input_reference: String.t() | nil,
  model: String.t(),
  negative_prompt: String.t() | nil,
  prompt: String.t(),
  seconds: String.t() | nil,
  seed: integer() | nil,
  size: String.t() | nil,
  video_uri: String.t() | nil
}