import type { Generic } from 'adopted-style-sheets';
import type { WatchStringOptions } from '../utils';
export type ImageSizesPropType = string;
export type PropImageSizes = {
    sizes: ImageSizesPropType;
};
export declare const validateImageSizes: (component: Generic.Element.Component, value?: ImageSizesPropType, options?: WatchStringOptions) => void;
