/**
 * Check if the given function, `fn`, is a constructor.
 *
 * This will not invoke the constructor
 * @param {any} fn
 * Function to check.
 * @returns {fn is (new (...args: any[]) => any)}
 * True if the function is a constructor, otherwise false.
 */
export function isConstructor(fn: any): fn is (new (...args: any[]) => any);