[android-components](../../index.md) / [mozilla.components.feature.session](../index.md) / [TrackingProtectionUseCases](index.md) / [engine](./engine.md)

# engine

`val engine: `[`Engine`](../../mozilla.components.concept.engine/-engine/index.md) [(source)](https://github.com/mozilla-mobile/android-components/blob/master/components/feature/session/src/main/java/mozilla/components/feature/session/TrackingProtectionUseCases.kt#L23)

the application's [Engine](../../mozilla.components.concept.engine/-engine/index.md).

