export declare class CommandError extends Error {
    readonly exitStatus: number;
    constructor(exitStatus: number, message: string);
}
export declare function flagValue(args: readonly string[], flag: string): string | undefined;
export declare function hasFlag(args: readonly string[], flag: string): boolean;
export declare function isPlainObject(value: unknown): value is Record<string, unknown>;
export declare function assertSafePathComponent(value: string, label: string): void;