[Home](./index.md) > [puppeteer](./puppeteer.md) > [Protocol](./puppeteer.protocol.md) > [Profiler](./puppeteer.protocol.profiler.md) > [PreciseCoverageDeltaUpdateEvent](./puppeteer.protocol.profiler.precisecoveragedeltaupdateevent.md) > [occassion](./puppeteer.protocol.profiler.precisecoveragedeltaupdateevent.occassion.md) ## Protocol.Profiler.PreciseCoverageDeltaUpdateEvent.occassion property Identifier for distinguishing coverage events. Signature: ```typescript occassion: string; ```