concat method

Implementation

@override
ChatResult concat(final LanguageModelResult<AIChatMessage> other) {
  return ChatResult(
    id: other.id.isNotEmpty ? other.id : id,
    output: output.concat(other.output),
    finishReason:
        finishReason != FinishReason.unspecified &&
            other.finishReason == FinishReason.unspecified
        ? finishReason
        : other.finishReason,
    metadata: {...metadata, ...other.metadata},
    usage: usage.concat(other.usage),
    streaming: other.streaming,
  );
}