import { ErrorUnion, OkUnion } from '../outputs';
/**
 * Checks the authentication code. Works only when the current authorization state is
 * authorizationStateWaitCode
 * @param {Object} params
 * @param {string} [params.code] - The verification code received via SMS, Telegram
 * message, phone call, or flash call
 * @param {string} [params.firstName] - If the user is not yet registered, the first
 * name of the user; 1-64 characters. You can also pass an empty string for unregistered
 * user there to check verification code validness. In the latter case PHONE_NUMBER_UNOCCUPIED
 * error will be returned for a valid code
 * @param {string} [params.lastName] - If the user is not yet registered; the last
 * name of the user; optional; 0-64 characters
 * @param {Object} state
 * @returns {OkUnion | ErrorUnion}
 */
export declare type CheckAuthenticationCodeMethod = <ResponseT = OkUnion>(params: CheckAuthenticationCodeParams, state?: Record<string, any>) => Promise<ResponseT | ErrorUnion>;
export interface CheckAuthenticationCodeParams {
    /** The verification code received via SMS, Telegram message, phone call, or flash call */
    code?: string;
    /**
     * If the user is not yet registered, the first name of the user; 1-64 characters. You
     * can also pass an empty string for unregistered user there to check verification code
     * validness. In the latter case PHONE_NUMBER_UNOCCUPIED error will be returned for
     * a valid code
     */
    firstName?: string;
    /** If the user is not yet registered; the last name of the user; optional; 0-64 characters */
    lastName?: string;
}