import { CSSResultGroup, TemplateResult } from 'lit';
import { SbbHorizontalFrom } from '../interfaces/types.ts';
import { SbbElement } from './element.ts';
declare const SbbSelectionGroupBaseElement_base: import('../mixins/constructor.ts').AbstractConstructor<import('../mixins/disabled-mixin.ts').SbbDisabledMixinType> & import('../mixins/constructor.ts').AbstractConstructor<import('../mixins/required-mixin.ts').SbbRequiredMixinType> & typeof SbbElement;
/**
 * It can be used as a container for one or more `sbb-checkbox`.
 *
 * @slot - Use the unnamed slot to add `sbb-checkbox` elements to the `sbb-checkbox-group`.
 * @slot error - Slot used to render a `sbb-error` inside the `sbb-checkbox-group`.
 */
export declare abstract class SbbSelectionGroupBaseElement<T extends SbbElement> extends SbbSelectionGroupBaseElement_base {
    static styles: CSSResultGroup;
    /**
     * Size variant, either xs (lean theme default), s or m (standard theme default).
     */
    accessor size: 'xs' | 's' | 'm' | null;
    /** Overrides the behavior of `orientation` property. */
    accessor horizontalFrom: SbbHorizontalFrom | null;
    /** Indicates the orientation of the checkboxes or panels inside the group. */
    accessor orientation: 'horizontal' | 'vertical';
    protected abstract readonly selectionElementSelectors: string;
    protected abstract readonly panelElementSelector: string;
    /**
     * List of contained selection elements.
     * @internal
     */
    get selectionElements(): T[];
    protected constructor();
    protected onSlotChange(): void;
    protected render(): TemplateResult;
}
export {};
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