title: Getting first level with JMESPath
body: <p>I have this JSON document:</p>
  <pre><code>{
  &quot;1&quot;: {
      &quot;a&quot;: &quot;G1&quot;
  },
  &quot;2&quot;: {
      &quot;a&quot;: &quot;GM1&quot;
  }
  }
  </code></pre>
  <p>My expected result should be:</p>
  <pre><code>1,G1
  2,GM1
  </code></pre>
  <p>With <code>*.a</code> i get</p>
  <pre><code>[
    &quot;G1&quot;,
    &quot;GM1&quot;
  ]
  </code></pre>
  <p>but I am absolutely stuck for the rest.</p>