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

    public function getPreFilledBillingAddress();

 /**
  * @Then /^(address "[^"]+", "[^"]+", "[^"]+", "[^"]+", "[^"]+", "[^"]+") should be filled as billing address$/
  */
 public function addressShouldBeFilledAsBillingAddress(AddressInterface $address)
 {
     Assert::true($this->addressComparator->equal($address, $this->addressPage->getPreFilledBillingAddress()));
 }