import { LitElement, TemplateResult, CSSResultArray, PropertyValues } from 'lit-element';
declare const observer: unique symbol;
declare const BlissButton_base: typeof LitElement & {
    new (...args: any[]): import("@bliss-design-system/shared").IconElementInterface;
    prototype: import("@bliss-design-system/shared").IconElementInterface;
};
/**
 * @element bliss-button
 *
 * @prop {String} [type=button] - input type, one of 'button', 'submit' or 'reset'
 * @prop {String} [href] - converts button into an anchor tag
 * @prop {String} {_blank|_parent|_self|_top} [target] - where to open the link, requires `href` attribute
 * @prop {String} [rel] - sets the relationship between the link and the document, requires `href` attribute
 * @prop {String} [download] - download instead of navigate, requires `href` attribute
 *
 * @attr {Boolean} [disabled=false] - whether or not to disable the button
 * @attr {Boolean} [loading=false] - whether or not to display loading spinner
 * @attr {String} [icon] - The name of the icon to display
 * @attr {Boolean} [icon-trailing=false] - whether to display the icon after the label
 * @attr {Boolean} [icon-only=false] - whether to display an icon only
 * @attr {Boolean} [full-width=false] - whether to make the button full width of its container
 * @attr {primary|secondary|ghost} [variant=primary] - button variant
 * @attr {default|netural|critical} [theme=default] - button theme
 * @attr {small|medium} [size=medium] - button size
 * @attr {Boolean} [transparent=false] - whether the background color of the button is transparent or not
 *
 * @slot - Default text slot
 * @slot icon — icon slot
 *
 * @csspart button
 */
export declare class BlissButton extends BlissButton_base {
    private [observer];
    private content;
    protected iconTrailing: boolean;
    protected iconOnly: boolean;
    loading: boolean;
    disabled: boolean;
    type: 'button' | 'submit' | 'reset';
    href?: string;
    target?: '_blank' | '_parent' | '_self' | '_top';
    rel?: string;
    download?: string;
    static get styles(): CSSResultArray;
    constructor();
    private handleClick;
    private setAriaLabel;
    firstUpdated(changed: PropertyValues): void;
    private slotObserver;
    private observe;
    connectedCallback(): void;
    disconnectedCallback(): void;
    private get contentTemplate();
    protected renderAnchor(): TemplateResult;
    protected renderButton(): TemplateResult;
    protected render(): TemplateResult;
}
export {};