docs: public static Condition attribute(final String attributeName, final String expectedAttributeValue) {
      return new Condition("attribute") {
        @Override
        public boolean apply(Driver driver, WebElement element) {
          return expectedAttributeValue.equals(getAttributeValue(element, attributeName));
        }
  
        @Override
        public String toString() {
          return name + " " + attributeName + '=' + expectedAttributeValue;
        }
      };
    }