docs: public static ExpectedCondition<Boolean> or(final ExpectedCondition<?>... conditions) {
      return new ExpectedCondition<Boolean>() {
        @Override
        public Boolean apply(WebDriver driver) {
          RuntimeException lastException = null;
          for (ExpectedCondition<?> condition : conditions) {
            try {
              Object result = condition.apply(driver);
              if (result != null) {
                if (result instanceof Boolean) {
                  if (Boolean.TRUE.equals(result)) {
                    return true;
                  }
                } else {
                  return true;
                }
              }
            } catch (RuntimeException e) {
              lastException = e;
            }
          }
          if (lastException != null) {
            throw lastException;
          }
          return false;
        }
  
        @Override
        public String toString() {
          StringBuilder message = new StringBuilder("at least one condition to be valid: ");
          Joiner.on(" || ").appendTo(message, conditions);
          return message.toString();
        }
      };
    }