import { MembraneClient, WorkspaceSyncEvent } from '@membranehq/sdk';
export declare function useElementsBackgroundSync(handlers?: {
    onMessage?: (event: WorkspaceSyncEvent) => void;
    onError?: (error: Error) => void;
    onOpen?: () => void;
    onInvalidationSuccess?: (event: WorkspaceSyncEvent, invalidatedKeys: string[]) => void;
    onInvalidationError?: (event: WorkspaceSyncEvent, error: Error) => void;
}, customClient?: MembraneClient, disabled?: boolean): void;
export declare function handleSSEMessage(eventData: WorkspaceSyncEvent, cache: Map<string, any>, mutate: (key: string) => Promise<any>, handlers: NonNullable<Parameters<typeof useElementsBackgroundSync>[0]> | undefined): void;