@type t() :: %ExBifrost.Model.BatchCreateRequest{
  completion_window: String.t() | nil,
  endpoint: String.t() | nil,
  input_file_id: String.t() | nil,
  metadata: %{optional(String.t()) => String.t()} | nil,
  model: String.t(),
  requests: [ExBifrost.Model.BatchCreateRequestRequestsInner.t()] | nil
}