import type { ConsumerInfo } from "@nats-io/jetstream";
import { type ParsedArgs, type FlagSpec, type CompletionResult } from "@cotal-ai/core";
export declare const backupFlags: FlagSpec[];
export declare function backupComplete(argv: string[]): CompletionResult;
export declare function isStoppedKvWatcher(stream: string, consumer: ConsumerInfo): boolean;
export declare function chunkQueue(): {
    iterable: AsyncIterable<Uint8Array>;
    push(chunk: Uint8Array): Promise<void>;
    close(error?: Error): void;
};
export declare function validateBackupArguments(args: ParsedArgs): void;
/** Native preservation/copy guards are unchanged; only final public observations reach the UI. */
export declare function backup(args: ParsedArgs): Promise<void>;
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