import { EventEmitter } from '../../stencil-public-runtime';
/**
 * Radio Buttons are graphical interface elements that allow user to choose
 * only one of a predefined set of mutually exclusive options.
 *
 * @slot hint - Optional hint element to be displayed with the radio.
 * @slot label - The slotted label. If both the label property and the label slot are present, only the label slot will be displayed.
 * @part label - The label content.
 * @part input - The native input element.
 */
export declare class CatRadio {
    private readonly _id;
    private get id();
    private input;
    hostElement: HTMLElement;
    hasSlottedLabel: boolean;
    hasSlottedHint: boolean;
    /**
     * Whether this radio is checked.
     */
    checked: boolean;
    /**
     * Whether this radio is disabled.
     */
    disabled: boolean;
    /**
     * A unique identifier for the input.
     */
    identifier?: string;
    /**
     * The label of the radio that is visible.
     */
    label: string;
    /**
     * Visually hide the label, but still show it to assistive technologies like screen readers.
     */
    labelHidden: boolean;
    /**
     * The name of the radio component.
     */
    name?: string;
    /**
     * Whether the radio is required.
     */
    required: boolean;
    /**
     * The value of the radio component.
     */
    value: any;
    /**
     * Optional hint text(s) to be displayed with the radio.
     */
    hint?: string | string[];
    /**
     * Whether the label should appear to the left of the radio component.
     */
    labelLeft: boolean;
    /**
     * The alignment of the checkbox.
     */
    alignment: 'center' | 'top' | 'bottom';
    /**
     * Attributes that will be added to the native HTML input element.
     */
    nativeAttributes?: {
        [key: string]: string;
    };
    /**
     * A unique identifier for the underlying native element that is used for
     * testing purposes. The attribute is added as `data-test` attribute and acts
     * as a shorthand for `nativeAttributes={ 'data-test': 'test-Id' }`.
     */
    testId?: string;
    /**
     * Emitted when the radio is changed.
     */
    catChange: EventEmitter<boolean | string>;
    /**
     * Emitted when the radio received focus.
     */
    catFocus: EventEmitter<FocusEvent>;
    /**
     * Emitted when the radio loses focus.
     */
    catBlur: EventEmitter<FocusEvent>;
    componentWillRender(): void;
    /**
     * Programmatically move focus to the radio button. Use this method instead of
     * `input.focus()`.
     *
     * @param options An optional object providing options to control aspects of
     * the focusing process.
     */
    doFocus(options?: FocusOptions): Promise<void>;
    /**
     * Programmatically remove focus from the radio button. Use this method
     * instead of `input.blur()`.
     */
    doBlur(): Promise<void>;
    render(): any;
    private get hasHint();
    private onInput;
    private onFocus;
    private onBlur;
}