The tag is present in Lintian version 2.109.24. That is the most recent version we know about.
The code in
debian/rules requires a prerequisite
that is not presently listed in the package's
In the special case of Python, affected packages should
on one of
python3-all-dev. Which one depends on whether a package supports
multiple Python versions, and also whether the package builds Python modules
or uses Python only as part of the build process.
Packages that depend on a specific Python version may build-depend
on any appropriate
The condition you see in the context is not a recommendation on what to add. If
you see a list, more than likely only one member is needed to make this tag go
away. You probably also do not need the
:any multiarch acceptor,
if you see one.
Please refer to Debian Policy Manual section 4.2 for details.