import { RadioGroupBase } from './shared/radio-group-base';
import { FocusOrigin } from '@angular/cdk/a11y';
import * as i0 from "@angular/core";
import * as i1 from "../../theme/src/theme-check.directive";
/**
 * Use radio buttons when you have a group of mutually exclusive choices and only
 * one selection from the group is allowed. RadioGroup accepts multiple Radio
 * elements as children. RadioGroup only allows single selection. Each Radio
 * represents an option that can be selected, labeled by its children.
 */
export declare class RadioGroupComponent extends RadioGroupBase {
    orientation: 'vertical' | 'horizontal';
    _onFocusChange(focusOrigin: FocusOrigin): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<RadioGroupComponent, never>;
    static ɵcmp: i0.ɵɵComponentDeclaration<RadioGroupComponent, "sp-radio-group", never, { "orientation": "orientation"; }, {}, never, ["*"], false, [{ directive: typeof i1.ThemeCheckDirective; inputs: {}; outputs: {}; }]>;
}