listen(_, event: string, arg?: any): Event<any> {
		switch (event) {
			case 'upload': return buffer(upload(URI.revive(arg)));
		}

		throw new Error(`Event not found: ${event}`);
	}

	constructor(private service: IExtensionManagementService) {
		this.onInstallExtension = buffer(service.onInstallExtension, true);
		this.onDidInstallExtension = buffer(service.onDidInstallExtension, true);
		this.onUninstallExtension = buffer(service.onUninstallExtension, true);
		this.onDidUninstallExtension = buffer(service.onDidUninstallExtension, true);
	}

	constructor(private service: ILocalizationsService) {
		this.onDidLanguagesChange = buffer(service.onDidLanguagesChange, true);
	}

	constructor(private service: ILogService) {
		this.onDidChangeLogLevel = buffer(service.onDidChangeLogLevel, true);
	}

	listen(event: string, arg?: any): Event<any> {
		switch (event) {
			case 'upload': return buffer(upload(URI.revive(arg)));
		}
		return undefined;
	}

	constructor(private service: IRemoteAuthorityResolverService) {
		this.onResolvingProgress = buffer(service.onResolvingProgress, true);
	}

	get onResolvingProgress(): Event<IResolvingProgressEvent> { return buffer(this.channel.listen('onResolvingProgress'), true); }