/**
 * Checks if a VPN connection is active.
 * @returns {boolean} Returns true if a VPN connection is active, otherwise false.
 */
export declare function isVpnActive(): boolean;
/**
 * Adds an event listener for VPN connection status changes.
 * @param listener - A callback function that is invoked when the VPN status changes.
 * @returns A function to unsubscribe the event listener.
 */
export declare function addEventListener(listener: (isVpnActive: boolean) => void): import("@react-native-community/netinfo").NetInfoSubscription;
/**
 * Custom React hook to get the current VPN connection status.
 * @returns Returns true if a VPN connection is active, otherwise false.
 */
export declare const useIsVpnActive: () => boolean;
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