import type { ChatMessageSearchScope, ChatMessageType } from './ChatMessage';
/**
 * The keyword matching types for the server-side message search.
 */
export declare enum ChatSearchKeywordMatchType {
    /**
     * Matches messages that contain any of the keywords.
     */
    OR = 0,
    /**
     * Matches messages that contain all of the keywords.
     */
    AND = 1
}
/**
 * The search options for searching messages from the server. See {@link ChatManager.searchMessagesFromServer}.
 */
export declare class ChatMessageSearchOption {
    /**
     * The keyword list for the search.
     *
     * **Note** Each keyword contains 1 to 120 characters, the total length of all keywords cannot exceed 120 characters, and the list contains a maximum of 5 keywords.
     */
    keywordList: string[];
    /**
     * The keyword matching type. See {@link ChatSearchKeywordMatchType}.
     *
     * The default value is `ChatSearchKeywordMatchType.OR`.
     */
    keywordMatchType?: ChatSearchKeywordMatchType;
    /**
     * The conversation ID.
     *
     * - For a one-to-one chat, it is the user ID of the peer user.
     * - For a group chat, it is the group ID.
     * - For a chat room, it is the chat room ID.
     *
     * If this parameter is not set, messages in all conversations are searched.
     */
    conversationId?: string;
    /**
     * The message types to search for. See {@link ChatMessageType}.
     *
     * **Note** Command (CMD) and voice messages are not supported.
     */
    msgTypes?: ChatMessageType[];
    /**
     * The start timestamp of the time range to search. The unit is millisecond.
     *
     * **Note** This parameter must be set together with {@link endTime}.
     */
    startTime?: number;
    /**
     * The end timestamp of the time range to search. The unit is millisecond.
     *
     * **Note** This parameter must be set together with {@link startTime}.
     */
    endTime?: number;
    /**
     * The message search scope. See {@link ChatMessageSearchScope}.
     *
     * The default value is `ChatMessageSearchScope.Content`, which means that only the message content is searched.
     */
    searchScope?: ChatMessageSearchScope;
    constructor(params: {
        keywordList: string[];
        keywordMatchType?: ChatSearchKeywordMatchType;
        conversationId?: string;
        msgTypes?: ChatMessageType[];
        startTime?: number;
        endTime?: number;
        searchScope?: ChatMessageSearchScope;
    });
}
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