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<table><trclass="module-item"><td><aclass="struct"href="struct.Counter.html"title="abstutil::collections::Counter struct">Counter</a></td><tdclass="docblock-short"></td></tr><trclass="module-item"><td><aclass="struct"href="struct.FixedMap.html"title="abstutil::collections::FixedMap struct">FixedMap</a></td><tdclass="docblock-short"><p>A drop-in replacement for <code>BTreeMap</code>, where the keys have the property of being array indices.
</td></tr><trclass="module-item"><td><aclass="struct"href="struct.MultiMap.html"title="abstutil::collections::MultiMap struct">MultiMap</a></td><tdclass="docblock-short"></td></tr><trclass="module-item"><td><aclass="struct"href="struct.Tags.html"title="abstutil::collections::Tags struct">Tags</a></td><tdclass="docblock-short"><p>Convenience functions around a string->string map</p>
</td></tr><trclass="module-item"><td><aclass="struct"href="struct.VecMap.html"title="abstutil::collections::VecMap struct">VecMap</a></td><tdclass="docblock-short"><p>Use when your key is just PartialEq, not Ord or Hash.</p>
<table><trclass="module-item"><td><aclass="trait"href="trait.IndexableKey.html"title="abstutil::collections::IndexableKey trait">IndexableKey</a></td><tdclass="docblock-short"><p>Use with <code>FixedMap</code>. From a particular key, extract a <code>usize</code>. These values should be