uniform enter pins method

gistfile1.txt

enterPins: function (driver) {
      return driver
        .elementById(screens.pinScreen.title)
        .should.eventually.exist
        .elementsById(screens.numpad.key1).last()
        .click()
        .elementsById(screens.numpad.key2).last()
       .click()
        .then(function() {
          //In android system alert comes after our custom alert and vice-versa in iOS
          if (process.env.PLATFORM != 'iOS') {
            return driver.elementById(screens.notificationPopup.pinCreated)
              .click()
              .elementById(screens.notificationPopup.ok)
              .click();
          }
          else {
            return driver.elementById(screens.notificationPopup.ok)
              .click()
            .elementById(screens.notificationPopup.pinCreated)
              .click();
          }
        })
  }