title: How do I reference one model from another model using aws API Gateway
body: <p>Say I have a Model:</p>
  
  <pre><code>"Pet":{
    "type": "object"
    "properties": {
      "name":{"type":"integer"},
      "age":{"type":"integer"}
    }
  }
  </code></pre>
  
  <p>And another model:</p>
  
  <pre><code>"Human":{
    "type": "object"
    "properties": {
      "name":{"type":"integer"},
      "age":{"type":"integer"},
      "pets":{
        "type":"array"
        "items": {
          &lt;This is where my question is&gt;
        }
      }
    }
  }
  </code></pre>
  
  <p>How can I reference the Pet model in my human model?</p>
  
  <p>With swagger I was able to say:</p>
  
  <pre><code>"$ref": "#/definitions/Pet"
  </code></pre>
  
  <p>but API Gateway seems to not allow it.</p>