src/vs/workbench/services/extensionManagement/electron-sandbox/nativeExtensionManagementService.ts/NativeExtensionManagementService/onDidInstallExtensions
class NativeExtensionManagementService:	override get onDidInstallExtensions() {
		return Event.filter(
			Event.map(this.onProfileAwareDidInstallExtensions, results => results.filter(e => this.filterEvent(e)), this.disposables),
			results => results.length > 0, this.disposables);
	}