import * as React from "react";
import type { MergeElementProps } from "../../typings";
interface CardHeaderBase {
    /** The content of the component. */
    children?: React.ReactNode;
    /** The action to display in the header. */
    action?: React.ReactNode;
    /**
     * Append to the classNames applied to the component so you can override or
     * extend the styles.
     */
    className?: string;
}
export declare type CardHeaderProps = MergeElementProps<"div", CardHeaderBase>;
declare type Component = {
    (props: CardHeaderProps): React.ReactElement | null;
    propTypes?: React.WeakValidationMap<CardHeaderProps> | undefined;
    displayName?: string | undefined;
};
declare const CardHeaderBase: (props: CardHeaderProps, ref: React.Ref<HTMLDivElement>) => JSX.Element;
declare const CardHeader: Component;
export default CardHeader;