import Source from '../../BoosterImage/classes/Source.js';
import type { BoosterProvide } from '../../../../module.js';
import type { $Img } from '@nuxt/image';
export interface ClassNames {
    picture: string;
    image: string[];
}
export default class SourceList {
    list: Source[];
    sort: boolean;
    constructor(list: Source[], options?: {
        sort?: boolean;
    });
    get length(): number;
    [Symbol.iterator](): ArrayIterator<Source>;
    get key(): string;
    get sorted(): Source[];
    get style(): string;
    get className(): string;
    get classNames(): ClassNames;
    getFormats(formats: string[], preloadFormat: string, isCritical: boolean): Source[];
    getMeta($img: $Img, $booster: BoosterProvide): Promise<SourceList>;
    toJSON(): Source[];
    static create(...args: [Source[], {
        sort?: boolean;
    }]): SourceList;
}