import { default as React } from 'react';
import { default as PropTypes } from 'prop-types';
/**
 * Returns the href if it uses a safe protocol, or undefined if it
 * uses a potentially dangerous scheme (javascript:, data:, etc).
 *
 * Accepts `unknown` rather than `string` on purpose: this is a security
 * guard, and it must keep rejecting non-string input that reaches it from
 * untyped call sites at runtime.
 */
export declare const getSafeHref: (href?: unknown) => string | null | undefined;
/**
 * This is not a complete list of HTML elements;
 * only the elements we want to support in `as` props.
 */
export declare const VALID_ELEMENTS: string[];
export interface AsElementProps {
    /** element to render  */
    elementType?: React.ElementType;
    children?: React.ReactNode;
    /**
     * Any additional props are spread onto the rendered element.
     * `AsElement` is a passthrough, so this is intentionally open-ended.
     */
    [key: string]: unknown;
}
/**
 * Utility to conditionally render different HTML elements
 * in our components. Useful for exposing `as` props:
 *
 * `<Row as="ul"><Row.Item as="li" /></Row>
 *
 * @usage <AsElement elementName="ul" otherProp="this gets passed through">
 */
declare const AsElement: {
    ({ elementType, children, ...rest }: AsElementProps): React.JSX.Element;
    propTypes: {
        /** element to render  */
        elementType: PropTypes.Validator<NonNullable<NonNullable<string | ((...args: any[]) => any)>>>;
        children: PropTypes.Requireable<NonNullable<PropTypes.ReactNodeLike>>;
    };
};
export default AsElement;
//# sourceMappingURL=AsElement.d.ts.map