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<title>negatable property - Option class - args library - Dart API</title>
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<h5>Option class</h5>
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<a href="package-args_args/Option-class.html#instance-properties">Properties</a>
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<h1>negatable property</h1>
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<span class="returntype">bool</span>
<span class="name ">negatable</span>
<div class="features">final</div>
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<p>Whether this flag's value can be set to <code>false</code>.</p>
<p>For example, if <a href="package-args_args/Option/name.html">name</a> is <code>flag</code>, the user can pass <code>--no-flag</code> to set its
value to <code>false</code>.</p>
<p>This is <code>null</code> unless <a href="package-args_args/Option/type.html">type</a> is <a href="package-args_args/OptionType/flag-constant.html">OptionType.flag</a>.</p>
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