import { AnonymousObject } from 'onekijs-framework';
import { CSSProperties } from 'react';
import { css } from 'styled-components';
import { CssProperty, Formatter } from '../styles/typings';
export declare const toCss: <T>(property: string | null, formatter: Formatter<T> | undefined, value: T, variants: AnonymousObject) => ReturnType<typeof css>;
export declare const cssProperty: <T>(property: string | null, formatter?: Formatter<T>) => CssProperty<T>;
export declare const preflight: () => ReturnType<typeof css>;
export declare const addClassname: (classname: string, existing?: string, after?: boolean) => string;
export declare const addStyle: (style: CSSProperties, existing?: CSSProperties) => CSSProperties;