code: public function click($label)
      {
          $raw = $this->clickSubmit($label);
          if (! $raw) {
              $raw = $this->clickLink($label);
          }
          if (! $raw) {
              $raw = $this->clickImage($label);
          }
  
          return $raw;
      }
docs: Clicks a visible text item. Will first try buttons, then links and then images.
  
  @param string $label        Visible text or alt text.
  
  @return string/boolean      Raw page or false.