@type t() :: %ExBifrost.Model.GeminiGenerationRequestToolsInnerRetrievalExternalApi{
  apiSpec: String.t() | nil,
  authConfig:
    ExBifrost.Model.GeminiGenerationRequestToolsInnerRetrievalExternalApiAuthConfig.t()
    | nil,
  elasticSearchParams:
    ExBifrost.Model.GeminiGenerationRequestToolsInnerRetrievalExternalApiElasticSearchParams.t()
    | nil,
  endpoint: String.t() | nil
}