import { Level, UserChoice } from '../recommendationModel';
export declare const promptUserUtil: (message: string, level: Level, hideNever: boolean) => Promise<UserChoice | undefined>;
export declare const isExtensionInstalled: (id: string) => boolean;
export declare const getInstalledExtensionName: (id: string) => string | undefined;
/**
 * Install an extension
 *
 * @returns when the extension is installed
 * @throws if the user refuses to install the extension, or if the extension does not get installed within a timeout period
 */
export declare const installExtensionUtil: (id: string, extensionDisplayName: string, timeout: number) => Promise<void>;
export declare const getExtensionConfigurationFile: () => string | undefined;
export declare const readExtensionConfigurationFile: () => Promise<string | undefined>;
export declare const isUnwantedRecommendation: (toExtension: string, data?: string) => Promise<boolean>;
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