import Telnyx from 'telnyx';

const client = new Telnyx({
  apiKey: 'My API Key',
});

const response = await client.simCards.actions.bulkSetPublicIPs({
  sim_card_ids: ['6b14e151-8493-4fa1-8664-1cc4e6d14158'],
});

console.log(response.data);

{
  "data": {
    "id": "6a09cdc3-8948-47f0-aa62-74ac943d6c58",
    "record_type": "bulk_sim_card_action",
    "action_type": "bulk_set_public_ips",
    "settings": {},
    "created_at": "2018-02-02T22:25:27.521Z",
    "updated_at": "2018-02-02T22:25:27.521Z"
  }
}