import { Directive, ElementPart } from 'lit/directive.js';
export type SpreadResult = {
    [key in string]: string | number | Array<string> | {
        [k: string]: string | boolean;
    } | EventListenerObject | EventListener;
};
export declare const setStyle: (el: Element, styleObj: string | string[] | {
    [k: string]: string;
}) => void;
export declare const removeStyle: (el: Element, styleObj: string | string[] | {
    [k: string]: string;
}) => void;
export declare const setClass: (el: Element, classObj: string | string[] | {
    [k: string]: boolean;
}) => void;
export declare const removeClass: (el: Element, classObj: string | string[] | {
    [k: string]: boolean;
}) => void;
declare class SpreadDirective extends Directive {
    private old;
    private el;
    render(_obj?: SpreadResult): symbol;
    update(_part: ElementPart, [obj]: Parameters<this['render']>): symbol;
    setObjectValue(obj?: SpreadResult): void;
    removeObjectValue(obj: SpreadResult): void;
}
export declare const spread: (_obj?: SpreadResult | undefined) => import("lit-html/directive").DirectiveResult<typeof SpreadDirective>;
export type { SpreadDirective };