/**
 * Injects CSS from a string into the page. Returns the HTML style element inserted into the page.
 *
 * @param css The CSS string.
 * @example
 * ```js
 * import {loadCSSFromString} from '@airtable/blocks/ui';
 * loadCSSFromString('body { background: red; }');
 * ```
 * @docsPath UI/utils/loadCSSFromString
 */
export declare function loadCSSFromString(css: string): HTMLStyleElement;
/**
 * Injects CSS from a remote URL.
 *
 * Returns a promise that resolves to the HTML style element inserted into the page.
 *
 * @param url The URL of the stylesheet.
 * @example
 * ```js
 * import {loadCSSFromURLAsync} from '@airtable/blocks/ui';
 * loadCSSFromURLAsync('https://example.com/style.css');
 * ```
 * @docsPath UI/utils/loadCSSFromURLAsync
 */
export declare function loadCSSFromURLAsync(url: string): Promise<HTMLLinkElement>;
/**
 * Injects Javascript from a remote URL.
 *
 * Returns a promise that resolves to the HTML script element inserted into the page.
 *
 * @param url The URL of the script.
 * @example
 * ```js
 * import {loadScriptFromURLAsync} from '@airtable/blocks/ui';
 * loadScriptFromURLAsync('https://example.com/script.js');
 * ```
 * @docsPath UI/utils/loadScriptFromURLAsync
 */
export declare function loadScriptFromURLAsync(url: string): Promise<HTMLScriptElement>;