title: OpenAPI not empty String
body: <p>I have a problem .</p>
  <p>I created openApi request and I want to send to request not empty body</p>
  <pre><code>/test
    post:
     .
     .
     .
     requestBody:
       required:true
  
  TestRequest
    type: object
    required:
      - testName
    properties:
      testName:
      type: string
      description: Test
  </code></pre>
  <p>I can send a request empty body like
  {
  } on postman.</p>
  <p>How can i solve this problem .</p>