import { AssetNamingStrategy } from './asset-naming-strategy';
export declare class DefaultAssetNamingStrategy implements AssetNamingStrategy {
    private readonly numberingRe;
    generateSourceFileName(originalFileName: string, conflictFileName?: string): string;
    generatePreviewFileName(sourceFileName: string, conflictFileName?: string): string;
    private isSupportedImageFormat;
    private incrementOrdinalSuffix;
    private addOrdinalSuffix;
    private addSuffix;
}