import type { GdmModel } from '@towns-protocol/sdk';
import { type ObservableConfig } from './useObservable';
/**
 * Hook to get the data of a Group DM.
 * You can use this hook to get Group DM metadata and if the user has joined the Group DM.
 * @param streamId - The id of the Group DM to get the data of.
 * @param config - Configuration options for the observable.
 * @returns The GdmModel of the Group DM.
 */
export declare const useGdm: (streamId: string, config?: ObservableConfig.FromData<GdmModel>) => import("./useObservable").ObservableValue<GdmModel>;
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