export declare const isOnline: () => boolean;
export declare const getPageTitle: (url: string) => Promise<string>;
export declare const normalizePastedHTML: (html: string) => Promise<string>;
/**
 *
 * @param {string} html
 * @param {string} text
 * @param {string} pasteType normal or pasteAsPlainText
 * return html | text | code, if the return value is html, we'll use html as paste data, we'll use text
 * as paste data if the return value is text, we'll create a html code block if the result is code.
 */
export declare const getCopyTextType: (html: string, text: string, pasteType: string) => "text" | "code" | "html";