extensions/typescript-language-features/src/utils/typingsStatus.ts/AtaProgressReporter/constructor
class AtaProgressReporter:	constructor(client: ITypeScriptServiceClient) {
		super();
		this._register(client.onDidBeginInstallTypings(e => this._onBegin(e.eventId)));
		this._register(client.onDidEndInstallTypings(e => this._onEndOrTimeout(e.eventId)));
		this._register(client.onTypesInstallerInitializationFailed(_ => this.onTypesInstallerInitializationFailed()));
	}