import { PinTestResult } from '../index';
import { PowerAuthRawPasswordType } from '../model/PowerAuthNativeTypes';
/**
 * Password interface implemented in the native code.
 */
export interface PowerAuthPassphraseMeterIfc {
    /**
     * Test strength of PIN.
     * @param pin PIN to test.
     * @returns `PinTestResult` object.
     * @throws `PowerAuthErrorCode.WRONG_PARAM` if PIN contains other characters than digits or length is less than 4.
     */
    testPin(pin: PowerAuthRawPasswordType): Promise<PinTestResult>;
}
export declare const NativePassphraseMeter: PowerAuthPassphraseMeterIfc;