import { ErrorUnion, MessagesUnion } from '../outputs';
/**
 * Returns messages in a chat. The messages are returned in a reverse chronological
 * order (i.e., in order of decreasing message_id). For optimal performance the number
 * of returned messages is chosen by the library. This is an offline request if only_local
 * is true
 * @param {Object} params
 * @param {number} [params.chatId] - Chat identifier
 * @param {number} [params.fromMessageId] - Identifier of the message starting from
 * which history must be fetched; use 0 to get results from the last message
 * @param {number} [params.offset] - Specify 0 to get results from exactly the from_message_id
 * or a negative offset up to 99 to get additionally some newer messages
 * @param {number} [params.limit] - The maximum number of messages to be returned;
 * must be positive and can't be greater than 100. If the offset is negative, the limit
 * must be greater or equal to -offset. Fewer messages may be returned than specified
 * by the limit, even if the end of the message history has not been reached
 * @param {boolean} [params.onlyLocal] - If true, returns only messages that are
 * available locally without sending network requests
 * @param {Object} state
 * @returns {MessagesUnion | ErrorUnion}
 */
export declare type GetChatHistoryMethod = <ResponseT = MessagesUnion>(params: GetChatHistoryParams, state?: Record<string, any>) => Promise<ResponseT | ErrorUnion>;
export interface GetChatHistoryParams {
    /** Chat identifier */
    chatId?: number;
    /**
     * Identifier of the message starting from which history must be fetched; use 0 to get
     * results from the last message
     */
    fromMessageId?: number;
    /**
     * Specify 0 to get results from exactly the from_message_id or a negative offset up
     * to 99 to get additionally some newer messages
     */
    offset?: number;
    /**
     * The maximum number of messages to be returned; must be positive and can't be greater
     * than 100. If the offset is negative, the limit must be greater or equal to -offset.
     * Fewer messages may be returned than specified by the limit, even if the end of the
     * message history has not been reached
     */
    limit?: number;
    /**
     * If true, returns only messages that are available locally without sending network
     * requests
     */
    onlyLocal?: boolean;
}