import { CSSResultGroup, TemplateResult } from 'lit';
import { SbbButtonBaseElement } from '../../core/base-elements.js';

declare const SbbExpansionPanelHeaderElement_base: import('../../core/mixins.js').AbstractConstructor<import('../../core/mixins.js').SbbDisabledMixinType> & import('../../core/mixins.js').AbstractConstructor<import('../../icon.js').SbbIconNameMixinType> & typeof SbbButtonBaseElement;
/**
 * It acts as a native `summary` tag for the `sbb-expansion-panel` component.
 *
 * @slot - Use the unnamed slot to add content to the `sbb-expansion-panel-header`.
 * @slot icon - Slot used to render the `sbb-expansion-panel-header` icon.
 * @event {CustomEvent<void>} toggleExpanded - Notifies that the `sbb-expansion-panel` has to expand.
 */
export declare class SbbExpansionPanelHeaderElement extends SbbExpansionPanelHeaderElement_base {
    static styles: CSSResultGroup;
    static readonly events: {
        readonly toggleExpanded: "toggleExpanded";
    };
    /** Notifies that the `sbb-expansion-panel` has to expand. */
    private _toggleExpanded;
    private _abort;
    private _namedSlots;
    connectedCallback(): void;
    private _emitExpandedEvent;
    private _onMouseMovement;
    /**
     * The 'data-icon' is used by the 'sbb-expansion-panel'.
     * It needs to be set before the @slotchange event bubbles to the 'expansion-panel'
     * but after the 'NamedSlotStateController' has run.
     */
    private _setDataIconAttribute;
    protected renderTemplate(): TemplateResult;
}
declare global {
    interface HTMLElementTagNameMap {
        'sbb-expansion-panel-header': SbbExpansionPanelHeaderElement;
    }
}
export {};
//# sourceMappingURL=expansion-panel-header.d.ts.map