title: How to check the field data type (only) using postman?
body: <p>I am using Postman for few of the API verifications in which I would like to verify data type (string/integer) of few fields from the responses. I do not want to check the field value.
  Ex:If I get a response something similar as below, I would like to check that sign_in_count always returns integer data type. :</p>
  
  <pre><code>    {
    "data": {
      "id": 274,
      "age": null,
      "email_id": "ojuuw@mailinator.com",
      "email_verification_flag": true,
      "ext_account": null,
      "ext_authenticator": null,
      "ext_user_id": null,
      "firstname": "firstname",
      "forgot_password_sent": null,
      "gender": null,
      "last_sign_in_at": null,
      "last_sign_in_ip": null,
      "region": "IN",
      "registered_using": null,
      "remember_created_at": null,
      "reset_password_sent_at": null,
      "reset_password_token": null,
      "sign_in_count": 0  
    }
  }
  </code></pre>
  
  <p>Any help, much appreciated..</p>
  
  <p>Thanks</p>