export declare const sleep: (ms: number) => Promise<void>;
export declare function performSearch(query: string, type?: "web" | "news" | "images" | "videos", retries?: number): Promise<any>;
export declare function fetchContent(url: string, format?: "text" | "html" | "markdown" | "json", retries?: number): Promise<string>;
/**
 * Get search results for a specific source - completely open approach with additional search terms
 */
export declare function searchSource(tokenName: string, tokenTicker: string, source: string): Promise<any>;
export declare function searchMultipleSources(tokenName: string, tokenTicker: string, sources: string[]): Promise<Record<string, any>>;