Cancellable</a></code> and coroutines.</p>

<p><code>CoScope</code> helps to manage lifecycle of coroutines and <code><a href="../Protocols/CoCancellable.html">CoCancellable</a></code>, like <code><a href="../Classes/CoFuture.html">CoFuture</a></code> and <code><a href="../Classes/CoChannel.html">CoChannel</a></code>.
It keeps weak references on inner objects and cancels them on <code>cancel()</code> or deinit.
All completed objects are automaticaly removed from scope.</p>
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