import type { WorkPresentationContent, WorkSlide, WorkSlideElement } from '../work-types';
import type { PresentationDesignMode } from './presentation-editor-types';
export declare function updatePresentationElements(content: WorkPresentationContent, mode: PresentationDesignMode, targetId: string, update: (elements: WorkSlideElement[]) => WorkSlideElement[], onChange: (content: WorkPresentationContent) => void): void;
export declare function updateSlide(content: WorkPresentationContent, slideId: string, update: (slide: WorkSlide) => WorkSlide, onChange: (content: WorkPresentationContent) => void): void;
export declare function newSlide(number: number): WorkSlide;
export declare function newPresentationElement(type: 'shape' | 'text'): WorkSlideElement;
export declare function newPresentationTableElement(requestedRows?: number, requestedColumns?: number): WorkSlideElement;
export declare function newPresentationImageElement(file: File): Promise<WorkSlideElement>;
export declare function clamp(value: number, minimum: number, maximum: number): number;
export declare function structuredCopy<T>(value: T): T;