ey,
 which will be ignored on read().
 The function needs to be wrapped in transaction.
 Returns ok or throws Error.</p>

<h3 class="function"><a name="delete-3">delete/3</a></h3>
<div class="spec">
<p><tt>delete(Storage::atom(), Key::any(), Lock::<a href="#type-lock_type">lock_type()</a>) -&gt; ok | no_return()</tt><br></p>
</div><p>Delete.
 Function updates the Value to the '@deleted@' in the Storage with Key
 and write_lock, which will be ignored on read().
 The function needs to be wrapped in transactio