export interface MetaData {
    title?: string;
    description?: string;
    icon?: string;
    image?: string;
    keywords?: string[];
    language?: string;
    type?: string;
    url?: string;
    provider?: string;
    [x: string]: string | string[] | undefined;
}
export declare type MetadataRule = [
    string,
    (el: Element) => (string | null)
];
export interface Context {
    url: string;
    options: Options;
}
export interface RuleSet {
    rules: MetadataRule[];
    defaultValue?: (context: Context) => string | string[];
    scorer?: (el: Element, score: any) => any;
    processor?: ((input: any, context: Context) => any);
}
export interface Options {
    maxRedirects?: number;
    ua?: string;
    lang?: string;
    timeout?: number;
    forceImageHttps?: boolean;
    html?: string;
    url?: string;
    customRules?: Record<string, RuleSet>;
}