export declare const headingTheme: {
    baseStyle: {
        fontWeight: string;
        lineHeight: string;
    };
    variants: {
        h1: {
            fontSize: string;
        };
        h2: {
            fontSize: string;
        };
        h3: {
            fontSize: string;
        };
        h4: {
            fontSize: string;
        };
        h5: {
            fontSize: string;
        };
        h6: {
            fontSize: string;
        };
    };
    defaultProps: {
        variant: string;
    };
};