import { File } from './file.type';
export declare function getDefaultKey(files: Record<string, File>): 'transformBaseUrl' | 'original' | 'webImage' | 'adaptiveVideo';
export declare function splitByCamelCase(str: string): string;
export declare function getUrlExtension(url: string): string | undefined;
export declare function getHumanReadableFileSize(bytes: number): string;