import { Constructor } from './constructor';
import { HasElementRef } from './element';
export interface CanSize {
    /**
     * Implemented as part of CanSize
     * 组件的主题调色板
     */
    size: ThemeSize;
}
/**
 * 主题尺寸
 * - large 大的
 * - medium 中的
 * - small 小的
 */
export declare type ThemeSize = 'small' | 'medium' | 'large' | undefined;
export declare type CanSizeCtor = Constructor<CanSize>;
/**
 * 用来扩展指令的`color`属性
 */
export declare function mixinSize<T extends Constructor<HasElementRef>>(base: T, defaultSize?: ThemeSize): CanSizeCtor & T;