<a name="beast.ref.boost__beast__lowest_layer_type"></a><a class="link" href="boost__beast__lowest_layer_type.html" title="lowest_layer_type">lowest_layer_type</a>
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<p>
- <a class="indexterm" name="idm45886638198032"></a>
+ <a class="indexterm" name="idm45873487368976"></a>
A trait to determine the lowest layer type of a stack of
stream layers.
</p>