/usr/share/doc/python-twisted-web/howto/listings/transparent-1.xml is in python-twisted-web 13.2.0-1ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 | <div xmlns:t="http://twistedmatrix.com/ns/twisted.web.template/0.1">
<!-- layout decision - these things need to be *siblings* -->
<t:transparent t:render="renderer1" />
<t:transparent t:render="renderer2" />
</div>
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