export declare function getKey(ctx: any): any;
export declare const noop: () => void;
export declare const isObject: (val: any) => boolean;
export declare const isString: (val: any) => boolean;
/**
 * 获取元素样式
 * @private
 * */
export declare function getStyle(el: any, styleName: any): any;
export declare function getSize(el: any): {
    width: any;
    height: any;
};
/**
 * 单位转化
 * @private
 * */
export declare function getStyleNum(el: any, styleName: any): number;
/**
 * 设置样式
 * @private
 * */
export declare function setStyle(el: any, obj: any): void;
