code: private static @Nullable ApiRateLimitBucket getRateLimitBucket(String name, boolean isUtility) {
      if (isUtility) {
        // For utilities, we only support ReportDownloader but not others (such as BatchJobHelper).
        return reportingClasses.contains(name) ? ApiRateLimitBucket.REPORTING : null;
      } else {
        // For all AdWords API services, share the "OTHERS" bucket.
        return ApiRateLimitBucket.OTHERS;
      }
    }
docs: Get the {@link ApiRateLimitBucket} for the specified AdWords API service / utility name.
  
  @param name the specified AdWords API service / utility name
  @param isUtility whether this is for some AdWords API utility
  @return the corresponding {@link ApiRateLimitBucket} enum, or null if it's not supported by
  this rate limiter extension