Function hasTokenUsage

src/node/services/streamManager.ts:447–456

(usage: LanguageModelV2Usage | undefined)

}

function hasTokenUsage(usage: LanguageModelV2Usage | undefined): usage is LanguageModelV2Usage {
  return (
    usage !== undefined &&
    ((usage.inputTokens ?? 0) > 0 ||
      (usage.outputTokens ?? 0) > 0 ||
      (usage.totalTokens ?? 0) > 0 ||
      (usage.cachedInputTokens ?? 0) > 0 ||
      (usage.reasoningTokens ?? 0) > 0)
  );
}

function cloneUsage(usage: LanguageModelV2Usage): LanguageModelV2Usage {
  return { ...usage };