import { RetainedPictureWatermarkInput, WatermarkInfo, WatermarkInput } from '../../../../document-api/src/index.js';
import { WatermarkDraft } from './watermark-dialog-state.js';
export declare function createWatermarkDraft(item?: WatermarkInfo): WatermarkDraft;
export declare function patchWatermarkDraft(draft: WatermarkDraft, patch: Partial<WatermarkDraft>): WatermarkDraft;
export declare function getWatermarkDraftError(draft: WatermarkDraft): string | null;
export declare function toWatermarkInput(draft: WatermarkDraft): WatermarkInput | RetainedPictureWatermarkInput;