import { ErrorUnion, OkUnion } from '../outputs';
/**
 * Informs TDLib that messages are being viewed by the user. Many useful activities
 * depend on whether the messages are currently being viewed or not (e.g., marking messages
 * as read, incrementing a view counter, updating a view counter, removing deleted messages
 * in supergroups and channels)
 * @param {Object} params
 * @param {number} [params.chatId] - Chat identifier
 * @param {number[]} [params.messageIds] - The identifiers of the messages being
 * viewed
 * @param {boolean} [params.forceRead] - True, if messages in closed chats should
 * be marked as read
 * @param {Object} state
 * @returns {OkUnion | ErrorUnion}
 */
export declare type ViewMessagesMethod = <ResponseT = OkUnion>(params: ViewMessagesParams, state?: Record<string, any>) => Promise<ResponseT | ErrorUnion>;
export interface ViewMessagesParams {
    /** Chat identifier */
    chatId?: number;
    /** The identifiers of the messages being viewed */
    messageIds?: number[];
    /** True, if messages in closed chats should be marked as read */
    forceRead?: boolean;
}