export declare class ExtensionCreator {
    private argv;
    /**
     * Arguments:
     *	--company - name of the company or person making the extension.
     *	--tool - name of the tool / extension that is being built.
     *  --solution - name of the solution / extension that is being built.
     *	--version - tag of the version to use.
     *  --internal - instead of referring to SDK, references point to internal shell library
     * @param {any} argv Object containing command arguments
    */
    constructor(argv: any);
    create(): void;
    private createHelper;
    private updateShellReferences;
    private updateFiles;
    private cleanFile;
    private cleanInternalPackages;
    private printOutro;
    private normalizeString;
    private isValidVersion;
}