code: public static @Nullable ApiRetryStrategy getRetryStrategy(String name, boolean isUtility) {
      ApiRateLimitBucket bucket = getRateLimitBucket(name, isUtility);
      return bucket == null ? null : bucketToStrategy.get(bucket);
    }
docs: Get the {@link ApiRetryStrategy} 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, i.e., from calling {@link
  com.google.api.ads.adwords.lib.factory.AdWordsServicesInterface#getUtility(com.google.api.ads.adwords.lib.client.AdWordsSession,
  Class)}.
  @return the corresponding {@link ApiRetryStrategy} object, or null if it's not supported by
  this rate limiter extension