Sylius\Behat\Page\Shop\Checkout\AddressPageInterface::nextStep PHP Method

    public function nextStep();

 /**
  * @Given I should be able to go to the shipping step again
  */
 public function iShouldBeAbleToGoToTheShippingStepAgain()
 {
     $this->addressPage->nextStep();
     Assert::true($this->selectShippingPage->isOpen(), 'Checkout shipping step should be opened, but it is not.');
 }