::{<span class="ident">value</span>, <span class="ident">Deserialize</span>, <span class="ident">IntoDeserializer</span>};

<span class="attribute">#[<span class="ident">derive</span>(<span class="ident">Deserialize</span>)]</span>
<span class="kw">enum</span> <span class="ident">Setting</span> {
    <span class="ident">On</span>,
    <span class="ident">Off</span>,
}

<span class="kw">impl</span> <span class="ident">FromStr</span> <span class="kw">for</span> <span class="ident">Setting</span> {
    <span c