export interface UseNetworkStateOptions {
    checkUrl?: string;
    checkIntervalMs?: number;
    debounceMs?: number;
    timeoutMs?: number;
}
export interface OnlineState {
    isOnline: boolean;
    isChecking: boolean;
    error: string | null;
}
export declare const useNetworkState: (options?: UseNetworkStateOptions) => OnlineState;