<span class="op">$</span><span class="fu">add_a_to_b</span><span class="op">(</span><span class="op">)</span></span></span>
<span class="r-in"><span><span class="va">helpers</span> <span class="op">&lt;-</span> <span class="fu">parse_R_helpers</span><span class="op">(</span><span class="va">code</span>, b<span class="op">=</span><span class="fl">6</span><span class="op">)</span></span></span>
<span class="r-in"><span><span class="va">helpers</span><span class="op">$</span><span class="fu">add_a_to_b</span><