export type TIsSelectorValidArgs = Parameters<typeof isSelectorValid>;
export type TIsSelectorValidReturn = ReturnType<typeof isSelectorValid>;
/**
 * Checks if string is valid CSS selector
 * @param str{string} source selector
 * @returns {boolean}
 * @throws {TypeError} isSelectorValid: str must be a string
 * @see https://developer.mozilla.org/en-US/docs/Web/CSS/CSS_selectors
 * @example
 * // How to check if the CSS selector is valid?
 * const selector = "#myElement";
 * const isValid = isSelectorValid(selector);
 * console.log(isValid); // => true
 * @example
 * // Validate a configurable selector before calling querySelector
 * const element = isSelectorValid(config.selector)
 *   ? document.querySelector(config.selector)
 *   : null;
 */
export declare const isSelectorValid: (str: string) => boolean;