export declare class NftNotRootError extends Error {
    constructor();
}
export declare class NftCommandError extends Error {
    readonly command: string;
    readonly stderr: string;
    constructor(command: string, stderr: string);
}
/**
 * Low-level executor for nft CLI commands.
 */
export declare class NftExecutor {
    private dryRun;
    constructor(options?: {
        dryRun?: boolean;
    });
    /** Check if running as root (euid 0). */
    isRoot(): boolean;
    /**
     * Execute a single nft command.
     * The command may or may not start with "nft " — the prefix is stripped if present.
     * Returns stdout on success.
     */
    exec(command: string): Promise<string>;
    /**
     * Execute multiple nft commands sequentially.
     * By default stops on first failure. Set continueOnError to keep going.
     */
    execBatch(commands: string[], options?: {
        continueOnError?: boolean;
    }): Promise<void>;
}