Function addUsage

packages/kosong/src/usage.ts:47–54

(a: TokenUsage, b: TokenUsage)

 * Sum two TokenUsage values.
 */
export function addUsage(a: TokenUsage, b: TokenUsage): TokenUsage {
  return {
    inputOther: a.inputOther + b.inputOther,
    output: a.output + b.output,
    inputCacheRead: a.inputCacheRead + b.inputCacheRead,
    inputCacheCreation: a.inputCacheCreation + b.inputCacheCreation,
  };
}