$ds, $key)</td></tr><tr><td><code class="mendoza-code">noop</code></td><td><code class="mendoza-code">(noop)</code></td><td>Does nothing.</td></tr><tr><td><code class="mendoza-code">prop</code></td><td><code class="mendoza-code">(prop val fiber)</code></td><td>Propagate (Re-raise) a signal that has been caught.</td></tr><tr><td><code class="mendoza-code">push</code></td><td><code class="mendoza-code">(push val)</code></td><td>Push $val on arg</td></tr><tr><td><code class="mendoza-code">push2</code></td><td>