title: Export parquet file schema to JSON or CSV
body: <p>I need to extract schema of parquet file into JSON, TXT or CSV format.
  That should include column name, datatype from parquet file.</p>
  <p>For example:</p>
  <pre><code>{&quot;id&quot;, &quot;type&quot; : &quot;integer&quot; },
   {&quot;booking_date&quot;&quot;type&quot; : &quot;timestamp&quot;, &quot;format&quot; : &quot;%Y-%m-%d %H:%M:%S.%f&quot; }
  </code></pre>