import { type CSSResult } from "lit";
type OutlineOptions = {
	width?: string | CSSResult;
	color?: string | CSSResult;
	selector?: string;
	type?: RingType;
};
/**
* The {@link RingBuilder} class is responsible for generating CSS styles for various types of outline/border/shadow.
*/
export declare class RingBuilder {
	css: string;
	constructor({ selector, width, color, type }?: OutlineOptions);
	get styleSheet(): CSSStyleSheet;
}
export type RingType = "outline" | "outline-inset" | "shadow" | "shadow-inset" | "border" | "none" | undefined;
export declare const isNone: (type: RingType) => boolean;
export declare const ringTypeAttribute = "ring-type";
export {};