import { CustomElement } from '../../Abstracts/CustomElement';
import type { ISelectItemGroupElementProps } from './ISelectItemGroupElementProps';
import { SelectItemElement } from './SelectItemElement';
import { IItemsAware } from '../../Interfaces/IItemsAware';
declare const SelectItemGroupElement_base: (abstract new (...args: Array<any>) => import("../../../Behaviors/Themeable").IThemeableProps) & typeof CustomElement & import("../../../Behaviors/Themeable").IThemeableCtor;
/**
 * Select Item Group - A collection of selectable options within a dropdown or select element.
 *
 * @element mosaik-select-item-group
 *
 * @slot - The default slot
 * @slot header - The header slot.
 *
 * @public
 */
export declare class SelectItemGroupElement extends SelectItemGroupElement_base implements ISelectItemGroupElementProps, IItemsAware<SelectItemElement> {
    private _header;
    /**
     * @public
     */
    constructor();
    /**
     * Returns the `{@link is}` property.
     * The `{@link is}` property represents natural name of this element.
     *
     * @public
     * @static
     * @readonly
     */
    static get is(): string;
    /**
     * Gets or sets the `header` property.
     *
     * @public
     * @attr
     */
    get header(): string;
    set header(value: string);
    /**
     * Returns the `count` property.
     *
     * @private
     * @readonly
     */
    get count(): number;
    /**
     * Returns the `items` property.
     *
     * @public
     * @readonly
     */
    get items(): Array<SelectItemElement>;
}
/**
 * @public
 */
export declare namespace SelectItemGroupElement {
    type Props = ISelectItemGroupElementProps;
}
/**
 * @public
 */
declare global {
    interface HTMLElementTagNameMap {
        'mosaik-select-item-group': SelectItemGroupElement;
    }
}
export {};
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