import { DefaultTheme } from 'styled-components';
export declare const getHeadingStyle: ({ variant, fontFamily }?: {
    variant?: 300 | 400 | 500 | 600 | 100 | 200 | 700 | 800 | 900 | undefined;
    fontFamily?: "ui" | "display" | "mono" | undefined;
}) => (_: {
    theme: DefaultTheme;
}) => string;