import { pathToRegexp } from "https://deno.land/x/frugal@0.2.1/dep/path-to-regexp.ts";
Normalize the given path string, returning a regular expression.
An empty array can be passed in for the keys, which will hold the
placeholder key descriptions. For example, using /user/:id, keys will
contain [{ name: 'id', delimiter: '/', optional: false, repeat: false }].