export default class SquircleHoudini extends HTMLElement {
    static observedAttributes: string[];
    connectedCallback(): void;
    /**
     * @param {string} name
     * @param {string} _
     * @param {string} newValue
     */
    attributeChangedCallback(name: string, _: string, newValue: string): void;
    /**
     * @param {string} name
     * @param {string} valueString
     */
    _setNumericStyle(name: string, valueString: string): void;
}