/**
 * Leading visual slot (e.g. icon) for `r-radio-button`. Place inside the `leading` slot of an `r-radio-button`.
 *
 * Example
 * ```
 * <r-radio-button name="payment" value="card">
 *   <r-radio-button-leading>
 *     <r-icon name="credit-card" size="m"></r-icon>
 *   </r-radio-button-leading>
 *   Credit card
 * </r-radio-button>
 * ```
 *
 * @slot - Leading content (e.g. icon) placed before the radio button
 */
export declare class RadioButtonLeading {
    /** Host DOM element */
    host: HTMLRRadioButtonLeadingElement;
    render(): any;
}