@type t() :: %Nvidia.Riva.Asr.SpeechRecognitionAlternative{
  __unknown_fields__: [
    {field_number :: integer(), Protobuf.Wire.Types.wire_type(),
     value :: term()}
  ],
  confidence: float() | :infinity | :negative_infinity | :nan,
  transcript: String.t(),
  words: [Nvidia.Riva.Asr.WordInfo.t()]
}