docs: public DetectFacesRequest withAttributes(Attribute... attributes) {
          java.util.ArrayList<String> attributesCopy = new java.util.ArrayList<String>(attributes.length);
          for (Attribute value : attributes) {
              attributesCopy.add(value.toString());
          }
          if (getAttributes() == null) {
              setAttributes(attributesCopy);
          } else {
              getAttributes().addAll(attributesCopy);
          }
          return this;
      }