import type { Editor } from "../types.js";
/**
 * Handles periodic saving and conflict resolution for the editor
 when EDITOR_SAVE_MODE is "direct" (no WebSocket).
 */
export declare class NoCollabSave {
    editor: Editor;
    saveInterval: number | null;
    savePromise: Promise<void> | null;
    _beforeUnloadHandler: (() => void) | null;
    _lastSaveTime: number;
    constructor(editor: Editor);
    start(): void;
    stop(): void;
    save(): Promise<void>;
    _hasUnsavedChanges(): boolean;
    _save(keepalive?: boolean): Promise<void>;
    _handleVersionConflict(): Promise<void>;
}
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