n class="macro">!</span>[<span class="kw-2">mut</span>]<span class="op">&gt;</span>,
    <span class="kw">pub</span> <span class="ident">ident</span>: <span class="ident">Ident</span>,
    <span class="kw">pub</span> <span class="ident">colon_token</span>: <span class="macro">Token</span><span class="macro">!</span>[:],
    <span class="kw">pub</span> <span class="ident">ty</span>: <span class="ident">Box</span><span class="op">&lt;</span><span class="ident">Type</span><span class="op">&gt;</span>,
    <spa