import { CSSResultArray, PropertyValues, SpectrumElement, TemplateResult } from '@spectrum-web-components/base';
/**
 * @element sp-banner
 *
 * @attr type - Determines the style, can be "info", "warning", or "error". Default is "info"
 * @attr corner - Determines if banner sets position at upper right corner or not.
 *
 * @slot header - Primary message of the banner.
 * @slot content - Secondary message of the banner. Used to provide a description.
 */
export declare class Banner extends SpectrumElement {
    type: 'info' | 'warning' | 'error';
    corner: boolean;
    static get styles(): CSSResultArray;
    protected update(changes: PropertyValues<this>): void;
    protected render(): TemplateResult;
}