import { CSSResultGroup } from 'lit';
import { BaseButton } from '../button/base-button.ts';
export type FABButtonVariant = "surface" | "primary" | "secondary" | "tertiary";
export type FABButtonSize = "s" | "m" | "l";
/**
 * @tag md-fab
 * @summary Material Floating action button web component
 */
export default class FAB extends BaseButton {
    static get styles(): CSSResultGroup;
    private _variant;
    get variant(): FABButtonVariant;
    set variant(variant: FABButtonVariant);
    private _size;
    get size(): FABButtonSize;
    set size(size: FABButtonSize);
    label: string;
    private get classes();
    private renderIcon;
    private renderChildrenContent;
    private renderButtonOrLink;
    render(): import('lit').TemplateResult<1>;
}
declare global {
    interface HTMLElementTagNameMap {
        "md-fab": FAB;
    }
}