ot;VAR&quot;)

# Fixed field with custom growth
f.mkfield(&quot;data&quot;, &quot;FLOAT&quot;, &quot;FIX&quot;, 8, 16)
</code></pre></div>
<h2 id="data-operations">Data Operations</h2>
<h3 id="setting-data">Setting Data</h3>
<div class="highlight"><pre><span></span><code># Set field value
f.setfield(&quot;record_id&quot;, &quot;field_name&quot;, &quot;value&quot;)

# Set multiple fields
f.setfield(&quot;user1&quot;, &quot;name&quot;, &quot;John Doe&quot;)
f.setfield(&quot;user1&quot;, &quot;age&quot;, 30)
f