import Telnyx from 'telnyx';

const client = new Telnyx({
  apiKey: process.env['TELNYX_API_KEY'], // This is the default and can be omitted
});

const globalIPProtocols = await client.globalIPProtocols.list();

console.log(globalIPProtocols.data);

{
  "data": [
    {
      "record_type": "global_ip_protocol",
      "code": "tcp",
      "name": "TCP"
    }
  ]
}