title: How would you design JSON Schema for an arbitrary key?
body: <p>I have the following JSON output data:</p>
  
  <pre><code>{
     "label_name_0" : 0,
     "label_name_5" : 3,
     .
     .
     .
     "label_name_XXX" : 4
  }
  </code></pre>
  
  <p>The output is simple: a key[1] name associated with integer value. If the key name doesn't change, I can easily come up with JSON Schema similar to this:</p>
  
  <pre><code>    {
          "type": "array"
          "title": "Data output",
          "items" :{ 
              "properties": {
                  "label_name": {
                     "type": "integer",
                     "default": 0,
                     "readonly": True,
              }
          }
      },
  </code></pre>
  
  <p>Since the key name itself is not known and keep changing, I have to design schema for it. The only thing I know is that the key is <code>string</code> and not more than 100 characters.  How do I define a JSON Schema for the key <code>lable_name_xxx</code> that keeps changing.</p>
  
  <p>[1] Not sure if I am using the right terminology </p>