import { type ChatSummary, type MutationHint } from "./types.js";
import { type DrizzleExecutor } from "../drizzle.js";
/**
 * Joins a discoverable public channel, a voluntarily departed channel, or a child for an active parent member by reactivating chatMembers with a fresh membership epoch.
 * The transaction advances chats history, preserves the previous role, and rejects private memberships that a manager explicitly revoked.
 */
export declare function channelJoin(executor: DrizzleExecutor, actorUserId: string, chatId: string): Promise<{
    chat: ChatSummary;
    hint: MutationHint;
    documentsHint?: MutationHint;
}>;
//# sourceMappingURL=channelJoin.d.ts.map