import { ErrorUnion, MessagesUnion } from '../outputs';
/**
 * Returns information about messages. If a message is not found, returns null on the
 * corresponding position of the result
 * @param {Object} params
 * @param {number} [params.chatId] - Identifier of the chat the messages belong to
 * @param {number[]} [params.messageIds] - Identifiers of the messages to get
 * @param {Object} state
 * @returns {MessagesUnion | ErrorUnion}
 */
export declare type GetMessagesMethod = <ResponseT = MessagesUnion>(params: GetMessagesParams, state?: Record<string, any>) => Promise<ResponseT | ErrorUnion>;
export interface GetMessagesParams {
    /** Identifier of the chat the messages belong to */
    chatId?: number;
    /** Identifiers of the messages to get */
    messageIds?: number[];
}