/**
 * Walmart Handler
 *
 * Extracts product data from Walmart.com
 * Uses embedded JSON data and structured data from product pages.
 *
 * URL Patterns:
 * - /ip/<title>/<id> - Product page
 * - /search?q=<query> - Search results
 * - /browse/<category> - Category page
 *
 * Data Sources:
 * - __NEXT_DATA__ (Next.js SSR data)
 * - JSON-LD structured data
 * - HTML parsing fallback
 *
 * Note: Walmart has strong anti-bot protection. When direct fetches get
 * challenged, the cascade falls through to Playwright rendering.
 */
import { BaseSiteHandler, type SiteHandlerResult, type FetchFunction, type SiteHandlerOptions } from './types.js';
export declare class WalmartHandler extends BaseSiteHandler {
    name: string;
    strategy: "api:walmart";
    /**
     * Check if URL is a Walmart URL
     */
    canHandle(url: string): boolean;
    /**
     * Extract data from Walmart
     */
    extract(url: string, fetchFn: FetchFunction, _options: SiteHandlerOptions): Promise<SiteHandlerResult | null>;
    /**
     * Extract product data from a product page
     */
    private extractProduct;
    /**
     * Extract __NEXT_DATA__ from HTML
     */
    private extractNextData;
    /**
     * Extract JSON-LD structured data
     */
    private extractJsonLd;
    /**
     * Parse product from Next.js data
     */
    private parseNextDataProduct;
    /**
     * Parse product from JSON-LD
     */
    private parseJsonLdProduct;
    /**
     * Extract product from HTML as fallback
     */
    private extractProductFromHtml;
    /**
     * Parse Walmart availability status
     */
    private parseAvailability;
    /**
     * Parse schema.org availability
     */
    private parseSchemaAvailability;
    /**
     * Decode HTML entities
     */
    private decodeHtmlEntities;
    /**
     * Extract search results
     */
    private extractSearchResults;
    /**
     * Extract category page
     */
    private extractCategoryPage;
    /**
     * Build result for single product
     */
    private buildProductResult;
    /**
     * Build result for search/category
     */
    private buildSearchResult;
    /**
     * Convert markdown to plain text
     */
    private markdownToText;
}
export declare const walmartHandler: WalmartHandler;
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