/usr/share/doc/xmlstarlet/examples/elem-depth is in xmlstarlet 1.5.0-1.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
1 2 3 | #!/bin/sh
# display unique elements up to depth 2
./xmlstarlet el -d2 ./xml/tab-obj.xml
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