import { JSXSlack } from '../../jsx';
import { LayoutBlockProps } from './utils';
export interface HeaderProps extends LayoutBlockProps {
    children: JSXSlack.ChildElements;
}
/**
 * [The `header` layout block](https://api.slack.com/reference/messaging/blocks#header)
 * to display plain text with bold font in a larger.
 *
 * ```jsx
 * <Blocks>
 *   <Header>
 *     Heads up!
 *   </Header>
 * </Blocks>
 * ```
 *
 * `<Header>` allows only a plain text. You cannot apply text styling through
 * HTML-like tags.
 *
 * @return The partial JSON for `header` layout block
 */
export declare const Header: import("../../jsx-internals").BuiltInComponent<HeaderProps>;