f</span><span class="o">.</span><span class="n">moltin</span><span class="o">.</span><span class="n">cart</span><span class="o">.</span><span class="nf">checkout</span><span class="p">(</span>
    <span class="nv">cart</span><span class="p">:</span> <span class="o">...</span><span class="p">,</span>
    <span class="nv">withCustomer</span><span class="p">:</span> <span class="o">...</span><span class="p">,</span>
    <span class="nv">withBillingAddress</span><span class="p">:</span> <span class="o">...</spa