import { PropertyValues } from 'lit';
import { SpectrumElement } from '../../element/index.js';
import { ICON_VALID_SIZES } from './Icon.types.js';
declare const IconBase_base: typeof SpectrumElement & {
    new (...args: any[]): import('../../mixins/index.js').SizedElementInterface;
    prototype: import('../../mixins/index.js').SizedElementInterface;
} & import('../../mixins/index.js').SizedElementConstructor;
/**
 * An icon renderer that displays slotted SVG markup.
 *
 * @attribute {string} label - Accessible label for the icon.
 * @attribute {string} size - T-shirt icon size.
 */
export declare abstract class IconBase extends IconBase_base {
    /**
     * T-shirt icon size.
     *
     * @default m
     */
    size: (typeof ICON_VALID_SIZES)[number];
    /**
     * Accessible label for the icon.
     */
    label: string;
    private defaultSlotElements;
    protected firstUpdated(changedProperties: PropertyValues): void;
    protected updated(changedProperties: PropertyValues): void;
    protected handleSlotChange(): void;
    private updateSlottedIcon;
    private updateHostAccessibility;
}
export {};