ViewUnlockRequirement

Defines what unlock mechanism, if any, is required to view the card.

Enums
VIEW_UNLOCK_REQUIREMENT_UNSPECIFIED Default value, same as UNLOCK_NOT_REQUIRED.
UNLOCK_NOT_REQUIRED Default behavior for all the existing Passes if ViewUnlockRequirement is not set.
UNLOCK_REQUIRED_TO_VIEW

Requires the user to unlock their device each time the pass is viewed.

If the user removes their device lock after saving the pass, then they will be prompted to create a device lock before the pass can be viewed.