@type t() :: %ExBifrost.Model.CountTokensRequest{
  fallbacks: [String.t()] | nil,
  instructions: String.t() | nil,
  messages: [ExBifrost.Model.CreateResponse200ResponseItem.t()],
  model: String.t(),
  text: String.t() | nil,
  tools: [ExBifrost.Model.ResponsesRequestToolsInner.t()] | nil
}