defined</span><span class="special">();</span>
<span class="keyword">void</span> <span class="identifier">disable_signatures</span><span class="special">();</span>
<span class="keyword">void</span> <span class="identifier">enable_signatures</span><span class="special">();</span>
<span class="keyword">void</span> <span class="identifier">disable_py_signatures</span><span class="special">();</span>
<span class="keyword">void</span> <span class="identifier">enable_py_signatures</span><span class="special">();<