import { IRenderer, ISpecification, IRenderable } from '../../api';
/**
 * Implementation of the 'bold' markup element. A
 * b HTML element is created and the lto-bold class
 * is added to allow CSS modifications.
 *
 * @see {@link IRenderable}
 */
export declare class Bold implements IRenderable {
    private readonly spec;
    constructor(message: ISpecification);
    /**
     * @inheritDoc
     */
    render(renderer: IRenderer, isNested: boolean): HTMLElement;
}