import { ITelegramClient } from '../../client.types.js';
import { InputPeerLike } from '../../types/peers/peer.js';
/**
 * Edit the custom rank (title) of a group chat participant.
 */
export declare function editChatMemberRank(client: ITelegramClient, params: {
    /** Chat ID */
    chatId: InputPeerLike;
    /** ID of the user to edit the rank of */
    participantId: InputPeerLike;
    /** New rank, or `null` to remove it */
    rank: string | null;
}): Promise<void>;