src/vs/workbench/contrib/experiments/common/experimentService.ts/ExperimentService/recordActivatedEvent
class ExperimentService:	private recordActivatedEvent(event: string) {
		const key = experimentEventStorageKey(event);
		const record = getCurrentActivationRecord(safeParse(this.storageService.get(key, StorageScope.GLOBAL), undefined));
		record.count[0]++;
		this.storageService.store(key, JSON.stringify(record), StorageScope.GLOBAL, StorageTarget.MACHINE);

		this._experiments
			.filter(e => {
				const lookingFor = e.raw?.condition?.activationEvent?.event;
				if (e.state !== ExperimentState.Evaluating || !lookingFor) {
					return false;
				}

				return typeof lookingFor === 'string' ? lookingFor === event : lookingFor?.includes(event);
			})
			.forEach(e => this.evaluateExperiment(e.raw!));
	}