Hi Team.. Facing failures in launching /Relaunching the application

Hi Team,
I need to find out exact keyword for below scenario

Scenario:
Open application
Redeem registration code
Set Security pin and questions
then perform couple of manual refreshes
photo card must be displayed
then close the application
then relaunch the application
Expected
PIN must be asked

I need sample keyword for Relaunching the application

Note: Launch application keyword does not working/not displaying as keyword

You need ask your team about this information, not on the internet forum

driver.launchApp(); should work