/**
 * @component BcmRadioGroup
 * @description A radio group component that manages a collection of `bcm-radio` components, ensuring only one radio button is selected at a time.
 * Supports horizontal or vertical layouts, various sizes, and states such as disabled, required, and error.
 *
 * @example
 * <bcm-radio-group name="group1" size="medium" direction="vertical" label="Select an option">
 *   <bcm-radio label="Option 1" value="1"></bcm-radio>
 *   <bcm-radio label="Option 2" value="2"></bcm-radio>
 * </bcm-radio-group>
 *
 * @example Radio group with error state and caption
 * <bcm-radio-group name="group1" error={true} caption-text="Please select an option">
 *   <bcm-radio label="Option 1" value="1"></bcm-radio>
 *   <bcm-radio label="Option 2" value="2"></bcm-radio>
 * </bcm-radio-group>
 *
 * @prop {string} name - The name attribute for the radio group, used to group radio buttons.
 * @defaultValue undefined
 * @prop {string} value - The currently selected value of the radio group.
 * @defaultValue undefined
 * @prop {boolean} disabled - Whether the radio group and its radio buttons are disabled.
 * @defaultValue false
 * @prop {boolean} required - Whether the radio group is required in a form.
 * @defaultValue false
 * @prop {boolean} error - Whether the radio group is in an error state.
 * @defaultValue false
 * @prop {string} label - The label text to display above the radio group.
 * @defaultValue undefined
 * @prop {RadioSize} size - Defines the size of the radio group and its radio buttons: 'small' | 'medium' | 'large'.
 * @defaultValue 'medium'
 * @prop {Direction} direction - The layout direction of the radio buttons: 'horizontal' | 'vertical'.
 * @defaultValue 'vertical'
 * @prop {string} captionText - Optional caption text to display below the radio group, often used for error messages or hints.
 * @defaultValue undefined
 *
 * @event {EventEmitter<HTMLBcmRadioElement>} bcmRadioGroupChange - Emitted when the selected radio button changes, passing the selected radio element.
 *
 * @method setClear - Clears the selected value and unchecks all radio buttons.
 * @method resetCaption - Resets the error state and caption.
 *
 * @csspart host - The root element of the radio group.
 * @csspart container - The container for the radio buttons.
 * @csspart label - The label element above the radio group.
 * @csspart caption - The caption text below the radio group.
 */
import { ComponentInterface, EventEmitter } from '../../stencil-public-runtime';
export declare class BcmRadioGroup implements ComponentInterface {
    host: HTMLBcmRadioGroupElement;
    /**
     * The name attribute for the radio group, used to group radio buttons.
     * @prop
     * @defaultValue undefined
     */
    name: string;
    /**
     * The currently selected value of the radio group.
     * @prop
     * @defaultValue undefined
     */
    value: string;
    /**
     * Whether the radio group and its radio buttons are disabled.
     * @prop
     * @defaultValue false
     */
    disabled: boolean;
    /**
     * Whether the radio group is required in a form.
     * @prop
     * @defaultValue false
     */
    required: boolean;
    /**
     * Whether the radio group is in an error state.
     * @prop
     * @defaultValue false
     */
    error: boolean;
    /**
     * The label text to display above the radio group.
     * @prop
     * @defaultValue undefined
     */
    label: string;
    /**
     * Defines the size of the radio group and its radio buttons: 'small' | 'medium' | 'large'.
     * @prop
     * @defaultValue 'medium'
     */
    size: 'small' | 'medium' | 'large';
    /**
     * The layout direction of the radio buttons: 'horizontal' | 'vertical'.
     * @prop
     * @defaultValue 'vertical'
     */
    direction: 'horizontal' | 'vertical';
    /**
     * Optional caption text to display below the radio group, often used for error messages or hints.
     * @prop
     * @defaultValue undefined
     */
    captionText?: string;
    bcmRadioGroupChange: EventEmitter<any>;
    private readonly radioGroupName;
    get radios(): NodeListOf<HTMLBcmRadioElement>;
    componentWillLoad(): void;
    /**
     * Clears the selected value (sets it to an empty string) and unchecks all radio buttons.
     * @method
     */
    setClear(): Promise<void>;
    /**
     * Resets the error state and caption.
     * @method
     */
    resetCaption(): Promise<void>;
    private handleSlotChange;
    handleValueChange(newValue: string): void;
    handleRadioChange(event: CustomEvent): void;
    private updateRadios;
    private radioGroupClass;
    render(): any;
}