import { AbstractStateRule } from '../abstract-state-rule.js';
/**
 * Validates Rondônia (RO) IE numbers.
 *
 * Two accepted formats:
 *  - 14 digits (current): single DV, Mod-11 rest < 2 → 0, weights [6,5,4,3,2,9,8,7,6,5,4,3,2]
 *  - 9 digits (legacy): 3-digit municipality code + 5-digit company code + 1 DV.
 *    DV = 11 - (sum % 11); if DV ≥ 10, subtract 10 (maps to 0 or 1).
 */
export declare class RoRule extends AbstractStateRule {
    execute(ie: string): boolean;
    private validate14;
    private validate9;
    private dvMod11;
}