entifier">argc</span><span class="mdzsyn-operator">,</span> <span class="mdzsyn-type">int32_t</span> <span class="mdzsyn-identifier">n</span><span class="mdzsyn-operator">,</span> <span class="mdzsyn-type">int32_t</span> <span class="mdzsyn-identifier">dflt_len</span><span class="mdzsyn-operator">)</span><span class="mdzsyn-operator">;</span>
<span class="mdzsyn-identifier">JanetArray</span> <span class="mdzsyn-operator">*</span><span class="mdzsyn-identifier">janet_optarray</span><span class="mdzsyn-operat