@type t() :: %Nvidia.Riva.Nmt.AvailableLanguageResponse{
  __unknown_fields__: [
    {field_number :: integer(), Protobuf.Wire.Types.wire_type(),
     value :: term()}
  ],
  languages: %{
    optional(String.t()) =>
      Nvidia.Riva.Nmt.AvailableLanguageResponse.LanguagePair.t() | nil
  }
}