import { execSync } from 'node:child_process';
import { existsSync, readFileSync, rmSync } from 'node:fs';
export interface RollbackNodeUiIo {
    existsSync: typeof existsSync;
    readFileSync: typeof readFileSync;
    rmSync: typeof rmSync;
    execSync: typeof execSync;
    log: (message: string) => void;
    error: (message: string) => void;
}
export declare function ensureRollbackNodeUiBundle(slotDir: string, target: 'a' | 'b', io?: RollbackNodeUiIo): boolean;
//# sourceMappingURL=rollback-node-ui.d.ts.map