From Get docs
< @angular/coreAngular/docs/8/api/core/wtfendtimerange


const deprecated

Ends a async time range operation. [range] is the return value from [wtfStartTimeRange] Async ranges only work if WTF has been enabled.

Deprecated: the Web Tracing Framework is no longer supported in Angular

const wtfEndTimeRange: (range: any) => void;

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