interface KillPortOptions {
    /** Single port or array of ports to kill */
    port: number | number[];
    /** Protocol to target (default: "tcp") */
    protocol?: 'tcp' | 'udp';
    /** Send SIGTERM instead of SIGKILL (default: false, unix only) */
    graceful?: boolean;
    /** Only show what would be killed (default: false) */
    dryRun?: boolean;
}
interface KillPortRangeOptions {
    /** Start of port range (inclusive) */
    from: number;
    /** End of port range (inclusive) */
    to: number;
    /** Protocol to target (default: "tcp") */
    protocol?: 'tcp' | 'udp';
    /** Send SIGTERM instead of SIGKILL (default: false, unix only) */
    graceful?: boolean;
    /** Only show what would be killed (default: false) */
    dryRun?: boolean;
}
interface KillResult {
    port: number;
    pids: number[];
    error: string | null;
}

declare function killPort({ port, protocol, graceful, dryRun }: KillPortOptions): Promise<KillResult[]>;
declare function killPortRange({ from, to, protocol, graceful, dryRun }: KillPortRangeOptions): Promise<KillResult[]>;

export { type KillPortOptions, type KillPortRangeOptions, type KillResult, killPort, killPortRange };