import type { Id } from '../identifier.utils.js';
import type { ClientProvider } from '../../client/index.js';
/**
 * Creates a virtual command that ensures a consumer group exists.
 * If the group does not exist, it will be created.
 *
 * @param c - Client provider function
 * @returns Function that ensures a consumer group exists by name
 */
export declare const ensureConsumerGroup: (c: ClientProvider) => (streamId: Id, topicId: Id, groupName: string) => Promise<import("./group.utils.js").ConsumerGroup>;
/**
 * Creates a virtual command that ensures a consumer group exists and joins it.
 * If the group does not exist, it will be created, then the client joins the group.
 *
 * @param c - Client provider function
 * @returns Function that ensures a consumer group exists and joins it
 */
export declare const ensureConsumerGroupAndJoin: (c: ClientProvider) => (streamId: Id, topicId: Id, groupName: string) => Promise<import("./group.utils.js").ConsumerGroup>;
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