import type Font from '#booster/classes/Font';
import type Source from '#booster/components/BoosterImage/classes/Source';
import type { ClassNames as SourceListClassNames } from '#booster/components/BoosterPicture/classes/SourceList';
import type SourceList from '#booster/components/BoosterPicture/classes/SourceList';
export declare function getImageStyleDescription(source: Source): {
    key: string;
    type: string;
    textContent: string;
};
export declare function getPictureStyleDescription(metaSources: SourceList, classNames: SourceListClassNames): {
    key: string;
    type: string;
    textContent: string;
};
export declare function getImagePreloadDescription({ srcset, sizes, type }: HTMLSourceElement, fetchpriority?: string, crossorigin?: string, onload?: () => void): {
    tagPriority: number;
    fetchpriority: string;
    key: string;
    rel: string;
    as: string;
    crossorigin: string;
    imageSrcset: string;
    imageSizes: string;
    type: string;
    onload: () => void;
};
export declare function getFontPreloadDescription(font: Font, media: string, fetchpriority?: string, crossorigin?: string, onload?: () => void): {
    tagPriority: number;
    fetchpriority: string;
    'data-key': string;
    key: string;
    rel: string;
    as: string;
    crossorigin: string;
    href: string;
    type: string;
    media: string;
    onload: () => void;
};
export declare function getStyleDescription(children: string, noScript?: boolean, key?: string): {
    key: string | undefined;
    innerHTML: string;
} | {
    key: string | undefined;
    type: string;
    textContent: string;
};
export declare function getNoScriptDescription(textContent: string, key?: string): {
    key: string | undefined;
    innerHTML: string;
};