code: public Collection<SingularityRequestParent> getCoolDownSingularityRequests() {
      final Function<String, String> requestUri = (host) -> String.format(REQUESTS_GET_COOLDOWN_FORMAT, getApiBase(host));
  
      return getCollection(requestUri, "COOLDOWN requests", REQUESTS_COLLECTION);
    }
docs: Get all requests that has been set to a COOLDOWN state by singularity
  
  @return
  All {@link SingularityRequestParent} instances that their state is COOLDOWN