export declare const isDirectory: (source: any) => Promise<boolean>;
export declare function generateTrust(platform?: string, appName?: string): MacOsTrust | WindowsTrust | LinuxTrust | NssTrust;
export declare class Trust {
    name: string;
    appName: string;
    constructor(appName: string);
    handleInstallResult(stderr: string, adding: boolean): boolean;
}
export declare class MacOsTrust extends Trust {
    name: string;
    installFromFile(certPath: string): Promise<void>;
    uninstall(certPath: string): Promise<void>;
    exists(certPath: string): Promise<boolean>;
}
export declare class WindowsTrust extends Trust {
    name: string;
    installFromFile(certPath: string): Promise<void>;
    uninstall(certPath: string): Promise<void>;
    exists(certPath: string): Promise<boolean>;
    convertPathToCer(oldCertPath: string): string;
}
export declare class LinuxTrust extends Trust {
    name: string;
    systemTrustFilename: string;
    systemTrustCommands: string[];
    constructor(appName: string);
    installFromFile(certPath: string): Promise<void>;
    uninstall(certPath: string): Promise<void>;
    exists(certPath: string): Promise<boolean>;
    getNewCertPath(certPath: string): string;
}
export declare class NssTrust extends Trust {
    name: string;
    nssProfileDir: string;
    certutilPath: string;
    installFromFile(certPath: string): Promise<void>;
    uninstall(certPath: string): Promise<void>;
    exists(certPath: string): Promise<boolean>;
    getFirefoxDatabases(): Promise<string[]>;
    getNssProfileDir(): string;
    getCertutilPath(): string;
}