ss="binding-type">cfunction</span>  <pre class="binding-text">(debug/step fiber &amp;opt x)

Run a fiber for one virtual instruction of the Janet machine. Can optionally pass in a value that will be passed as the resuming value. Returns the signal value, which will usually be nil, as breakpoints raise nil signals.</pre><a href="https://janetdocs.org/debug/step">Community Examples</a></div><hr><div class="binding"><span id="debug/unbreak" class="binding-sym">debug/unbreak</span> <span class="binding-type">cf