import { PropertyValueMap, LitElement } from 'lit';
import { EventOptions } from './event';
export declare class DdsElement extends LitElement {
    /**
     * The custom element tag name for this component (e.g. `dap-ds-button`).
     * Each component sets this; `define()` uses it as the default name and the
     * Custom Elements Manifest analyzer reads it to recover the tag.
     */
    static tagName: string;
    /**
     * Other DDS components this element renders internally. They are registered
     * automatically (guarded) the first time this element is constructed, so a
     * per-component import brings its own dependencies without the consumer
     * having to register them by hand.
     */
    static dependencies: Record<string, typeof DdsElement>;
    /**
     * Registers this component as a custom element. Safe to call repeatedly and
     * across bundles: if the tag is already defined it is a no-op (warning on a
     * different constructor) instead of throwing like `customElements.define`.
     */
    static define(name?: string, ctor?: CustomElementConstructor, options?: ElementDefinitionOptions): void;
    constructor();
    /**
     * Accessible label for the element. Use this to provide a text alternative
     * for elements that don't have visible text content.
     * @group Accessibility
     */
    ariaLabel: string | null;
    /**
     * Indicates whether the element is expanded or collapsed.
     * @type { 'true' | 'false' }
     * @group Accessibility
     */
    ariaExpanded: string | null;
    /**
     * Identifies the element that is controlled by this element.
     * @group Accessibility
     */
    ariaControls: string | null;
    /**
     * Indicates the availability and type of interactive popup element.
     * @group Accessibility
     */
    ariaHasPopup: string | null;
    /**
     * Identifies the element that describes the current element.
     * @group Accessibility
     */
    ariaDescribedBy: string | null;
    /**
     * Indicates the current "pressed" state of toggle buttons.
     * @type { 'true' | 'false' | 'mixed' }
     * @group Accessibility
     */
    ariaPressed: string | null;
    /**
     * Indicates whether the element is hidden from accessibility APIs.
     * @type { 'true' | 'false' }
     * @group Accessibility
     */
    ariaHidden: string | null;
    /**
     * Custom CSS text to be merged with the component's styles.
     * This CSS will be injected into the shadow DOM and merged with the component's static styles.
     * @example
     * ```html
     * <dap-ds-spinner custom-styles=".spinner { border: 2px solid red; }"></dap-ds-spinner>
     * ```
     */
    customStyles?: string;
    private _customStyleSheet?;
    emit<V = Record<PropertyKey, any>>(name: string, value?: V, options?: EventOptions): CustomEvent<V>;
    protected firstUpdated(_changedProperties: PropertyValueMap<any> | Map<PropertyKey, unknown>): void;
    protected updated(_changedProperties: PropertyValueMap<any> | Map<PropertyKey, unknown>): void;
    private _updateCustomStyles;
}