export interface FontMetrics {
    /** from textmetrics, this is the font ascent (max, essentially) */
    ascent: number;
    /** from textmetrics, this is the font descent (max) */
    descent: number;
    /** total height for the font (line height). just ascent + descent. should we +1 for baseline? */
    height: number;
    /** width of one paren */
    paren: number;
    /** width of one hash (#) character */
    hash: number;
}
/**
 * get font metrics for the given font, which includes a size.
 * precompute the size, we're not doing that anymore.
 */
export declare const Get: (font: string, variants?: string) => FontMetrics;
/**
 * flush cache. this should be called when you update the theme
 */
export declare const Flush: () => void;