n turns
        on this feature, and the write buffer size option determines the maximum
        size of the fragments:
      </p>
<pre class="programlisting"><span class="identifier">ws</span><span class="special">.</span><span class="identifier">auto_fragment</span><span class="special">(</span><span class="keyword">true</span><span class="special">);</span>
<span class="identifier">ws</span><span class="special">.</span><span class="identifier">write_buffer_bytes</span><span class="special">(</span><span