function unescapeValue(value) {
	  var deprecatedUsage = false;
	  var quoteMark = null;
	  var unescaped = value;
	  var m = unescaped.match(WRAPPED_IN_QUOTES);
	  if (m) {
	    quoteMark = m[1];
	    unescaped = m[2];
	  }
	  unescaped = (0, _unesc["default"])(unescaped);
	  if (unescaped !== value) {
	    deprecatedUsage = true;
	  }
	  return {
	    deprecatedUsage: deprecatedUsage,
	    unescaped: unescaped,
	    quoteMark: quoteMark
	  };
	}
For Node.js, simply re-export the core `util.deprecate` function.