import { type TemplateResult } from "lit";
import { GlobalStyle } from "../../internal/global-style.js";
/**
* {@linkcode Breath} render the text with a breathing effect.
*
* Dynamically generate a breathing effect based on the length of the split text.
*
* If there is not enough CSS variable, overrun elements will use the.
*
* godown was a css library in its earliest days,
* and this is the component version of its first effect.
*
* Inspired by Vercel home page (2023).
*
* @slot - Breathing parts.
* @category effect
*/
declare class Breath extends GlobalStyle {
	/**
	* Strings or array of strings,
	* if array, divided each element into chunks,
	* otherwise split strings by whitespace.
	*/
	content: string | string[];
	/**
	* Effect duration.
	*/
	duration: number;
	constructor();
	protected render(): TemplateResult<1>;
	protected _renderText(text: string): TemplateResult<1>;
	protected getTexts(): string[];
	protected _computeStyle(len: number): string;
}
export default Breath;
export { Breath };