import type { CommandResponse } from '../../client/client.type.js';
import { type Id } from '../identifier.utils.js';
import { type Topic } from './topic.utils.js';
/**
 * Parameters for the get topic command.
 */
export type GetTopic = {
    /** Stream identifier (ID or name) */
    streamId: Id;
    /** Topic identifier (ID or name) */
    topicId: Id;
};
/**
 * Get topic command definition.
 * Retrieves detailed information about a specific topic.
 */
export declare const GET_TOPIC: {
    code: number;
    serialize: ({ streamId, topicId }: GetTopic) => Buffer<ArrayBuffer>;
    deserialize: (r: CommandResponse) => Topic | null;
};
/**
 * Executable get topic command function.
 */
export declare const getTopic: (getClient: import("../../client/client.type.js").ClientProvider) => (arg: GetTopic) => Promise<Topic | null>;
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