//[passport](../../../../index.md)/[com.yandex.passport.api](../../index.md)/[PassportProperties](../index.md)/[Builder](index.md)/[assertionDelegate](assertion-delegate.md)

# assertionDelegate

[passport]\
abstract override var [assertionDelegate](assertion-delegate.md): [PassportAssertionDelegate](../../-passport-assertion-delegate/index.md)?

Delegate, allowing to override default assertion failure behaviour.
