title: Response object templates in Karate
body: <p>Is there a way to create a template structure of a response object, that ignores content of fields? I'm in this instance interested in verifying that all relevant field names are present, regardless of related data.
  A dataless version of <a href="https://github.com/intuit/karate#embedded-expressions" rel="nofollow noreferrer">Templates</a> that can be used in Scenario Outline would be great.</p>
  
  <p>For the curious soul, I'm verifying API docs.</p>
  
  <p>Example response to verify structure of:</p>
  
  <pre><code>"Clinics": [
  {
    "ClinicId": 1212,
    "MondayOpen": null,
    "MondayClose": null,
    "TuesdayOpen": null,
    "TuesdayClose": null,
    "WednesdayOpen": null,
    "WednesdayClose": null,
    "ThursdayOpen": null,
    "ThursdayClose": null,
    "FridayOpen": null,
    "FridayClose": null,
    "SaturdayOpen": null,
    "SaturdayClose": null,
    "SundayOpen": null,
    "SundayClose": null,
  }]
  </code></pre>
  
  <p>I'm not interested in the value of ClinicId or the other fields.
  I'd like to know if the field ClinicId, MondayOpen, and so on is present.</p>