export declare const ImageFileTypes: string[];
export declare const DocumentFileTypes: string[];
export declare const VideoFileTypes: string[];
export declare const OfficeFileTypes: string[];
export declare function validateFilename(fileNameWithExtension: string): {
    hasIllegalCharacter: boolean;
    hasIllegalName: boolean;
    valid: boolean;
};
export declare function validateFoldername(folderName: string): {
    hasIllegalCharacter: boolean;
    hasIllegalName: boolean;
    valid: boolean;
};
export declare function validateAndSetFilename(fileNameWithExtension: string): string;