Error('b)</h4>

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<div class='doc-item'><h4 class='item'>type <a href="#type-opts" id="type-opts">opts</a> = {
    presence: <a href="#module-StrSet">StrSet</a>.<a href="#type-StrSet.t">t</a>,
    bools: <a href="#module-StrMap">StrMap</a>.<a href="#type-StrMap.t">t</a>(bool),
    floats: <a href="#module-StrMap">StrMap</a>.<a href="#type-StrMap.t">t</a>(float),
    ints: <a href="#module-StrMap">StrMap</a>.<a href="#type-StrMap.t">t</a>(int),
    strings: <a href="#