type SemanticContent = {
    title: string;
    description?: string;
    keywords?: string[];
    canonicalUrl?: string;
    ogTags?: Record<string, string>;
    headings?: Array<{
        level: number;
        text: string;
    }>;
    content?: string;
    jsonLd?: object[];
    language?: string;
};
type ContextData = {
    semantic: SemanticContent;
    html?: string;
    url: string;
    referrer?: string;
    extractedAt: number;
};
type PageContextConfig = {
    includeHtml?: boolean;
    contentSelector?: string;
    maxContentLength?: number;
    maxHtmlLength?: number;
};
declare function extractSemanticContent(config: PageContextConfig): SemanticContent;
declare function extractContext(config: PageContextConfig): ContextData;
declare function normalizeContextConfig(config: PageContextConfig | boolean | undefined): PageContextConfig | null;
export type { SemanticContent, ContextData, PageContextConfig };
export { extractContext, extractSemanticContent, normalizeContextConfig };