Export Contacts

**Use this endpoint to export lists or segments of contacts**. If you would just like to have a link to the exported list sent to your email set the `notifications.email` option to `true` in the `POST` payload. If you would like to download the list, take the `id` that is returned and use the "Export Contacts Status" endpoint to get the `urls`. Once you have the list of URLs, make a `GET` request to each URL provided to download your CSV file(s). You specify the segments and or/contact lis...