export type ValidateOptions = {
    lengthFactor?: number;
    formatOverride?: 'xlf' | 'json';
};
export type Finding = {
    level: 'error' | 'warn' | 'info';
    message: string;
    unitId?: string;
    locale?: string;
};
export type Report = {
    items: Finding[];
};
export declare function validateFiles(files: string[], opts: ValidateOptions): Promise<Report>;