| # util.promisify | |
| Polyfill for util.promisify in node versions < v8 | |
| node v8.0.0 added support for a built-in `util.promisify`: https://github.com/nodejs/node/pull/12442/ | |
| This package provides the built-in `util.promisify` in node v8.0.0 and later, and a replacement in other environments. | |
| Note: this package requires a native ES5 environment, and for `Promise` to be globally available. It will throw upon requiring it if these are not present. |