import { ChatUnion, ErrorUnion } from '../outputs';
/**
 * Returns an existing chat corresponding to a known secret chat
 * @param {Object} params
 * @param {number} [params.secretChatId] - Secret chat identifier
 * @param {Object} state
 * @returns {ChatUnion | ErrorUnion}
 */
export declare type CreateSecretChatMethod = <ResponseT = ChatUnion>(params: CreateSecretChatParams, state?: Record<string, any>) => Promise<ResponseT | ErrorUnion>;
export interface CreateSecretChatParams {
    /** Secret chat identifier */
    secretChatId?: number;
}