import { ErrorUnion, MessagesUnion } from '../outputs';
/**
 * Searches for messages in all chats except secret chats. Returns the results in reverse
 * chronological order (i.e., in order of decreasing (date, chat_id, message_id)). For
 * optimal performance the number of returned messages is chosen by the library
 * @param {Object} params
 * @param {string} [params.query] - Query to search for
 * @param {number} [params.offsetDate] - The date of the message starting from which
 * the results should be fetched. Use 0 or any date in the future to get results from
 * the last message
 * @param {number} [params.offsetChatId] - The chat identifier of the last found
 * message, or 0 for the first request
 * @param {number} [params.offsetMessageId] - The message identifier of the last
 * found message, or 0 for the first request
 * @param {number} [params.limit] - The maximum number of messages to be returned,
 * up to 100. Fewer messages may be returned than specified by the limit, even if the
 * end of the message history has not been reached
 * @param {Object} state
 * @returns {MessagesUnion | ErrorUnion}
 */
export declare type SearchMessagesMethod = <ResponseT = MessagesUnion>(params: SearchMessagesParams, state?: Record<string, any>) => Promise<ResponseT | ErrorUnion>;
export interface SearchMessagesParams {
    /** Query to search for */
    query?: string;
    /**
     * The date of the message starting from which the results should be fetched. Use 0
     * or any date in the future to get results from the last message
     */
    offsetDate?: number;
    /** The chat identifier of the last found message, or 0 for the first request */
    offsetChatId?: number;
    /** The message identifier of the last found message, or 0 for the first request */
    offsetMessageId?: number;
    /**
     * The maximum number of messages to be returned, up to 100. Fewer messages may be returned
     * than specified by the limit, even if the end of the message history has not been
     * reached
     */
    limit?: number;
}