src/vs/platform/extensionManagement/node/extensionManagementService.ts/AbstractInstallExtensionTask/extract
class AbstractInstallExtensionTask:	private async extract({ zipPath, key, metadata }: InstallableExtension, token: CancellationToken): Promise<ILocalExtension> {
		let local = await this.extensionsScanner.extractUserExtension(key, zipPath, metadata, token);
		this.logService.info('Extracting completed.', key.id);
		return local;
	}