/**
 * Checks if a port is available for use by attempting to bind to it.
 * Checks both IPv4 (0.0.0.0) and IPv6 (::) to ensure the port is truly available.
 * @param port The port number to check
 * @returns A promise that resolves to true if the port is available, false otherwise
 */
export declare function isPortAvailable(port: number): Promise<boolean>;
/**
 * Finds the next available port starting from the given port.
 * @param startPort The port number to start searching from
 * @returns A promise that resolves to an available port number
 * @throws Error if no available port is found up to port 65535
 */
export declare function getAvailablePort(startPort: number): Promise<number>;
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