Function convertUsageMetadata

apps/sim/providers/google/utils.ts:145–157

(
  usageMetadata: GenerateContentResponseUsageMetadata | undefined
)

 * We include toolUsePromptTokenCount in input and thoughtsTokenCount in output for correct billing.
 */
export function convertUsageMetadata(
  usageMetadata: GenerateContentResponseUsageMetadata | undefined
): GeminiUsage {
  const thoughtsTokenCount = usageMetadata?.thoughtsTokenCount ?? 0
  const toolUsePromptTokenCount = usageMetadata?.toolUsePromptTokenCount ?? 0
  const promptTokenCount = (usageMetadata?.promptTokenCount ?? 0) + toolUsePromptTokenCount
  const candidatesTokenCount = (usageMetadata?.candidatesTokenCount ?? 0) + thoughtsTokenCount
  return {
    promptTokenCount,
    candidatesTokenCount,
    totalTokenCount: usageMetadata?.totalTokenCount ?? 0,
  }
}

/**
 * Tool definition for Gemini format