-identifier">JanetFiber</span> <span class="mdzsyn-operator">*</span><span class="mdzsyn-identifier">janet_fiber_reset</span><span class="mdzsyn-operator">(</span><span class="mdzsyn-identifier">JanetFiber</span> <span class="mdzsyn-operator">*</span><span class="mdzsyn-identifier">fiber</span><span class="mdzsyn-operator">,</span> <span class="mdzsyn-identifier">JanetFunction</span> <span class="mdzsyn-operator">*</span><span class="mdzsyn-identifier">callee</span><span class="mdzsyn-operator">,</span> <sp