import { Style } from '../style';
export declare class FontWeight extends Style {
    static matches: RegExp;
    static key: string;
    static unit: string;
    static values: {
        thin: number;
        extralight: number;
        light: number;
        regular: number;
        medium: number;
        semibold: number;
        bold: number;
        extrabold: number;
        heavy: number;
    };
}