mam-project-templates/cloned/FreeCSS/Ranger/node_modules/es6-weak-map/valid-weak-map.js

my personal templating projects

'use strict';

var isWeakMap = require('./is-weak-map');

module.exports = function (x) {
	if (!isWeakMap(x)) throw new TypeError(x + " is not a WeakMap");
	return x;
};