import { Service } from '../services/service';
export declare function addExt(opts: {
    file: string;
    ext: string;
}): string;
export declare function getAbsFiles(opts: {
    files: string[];
    cwd: string;
}): string[];
/**
 * parse extends option for config
 */
export declare function parseExtendsConfig(opts: {
    config: Record<string, any>;
    resolvePaths?: string[];
    service: Service;
}): Record<string, any>;