docs: public Set<Hardware> getHardwareFlavors(@Nullable final String locationUUID)
          throws FlexiantException {
          //noinspection unchecked
          return Hardware
              .from(this.getResources(ResourceType.PRODUCTOFFER, ProductOffer.class, locationUUID),
                  this.getResources(ResourceType.CLUSTER, Cluster.class, null));
      }