You can list the empty and the full signature, and mention in the prose text that they are optional, and leaving out some of them at the end is allowed too.
but this needs a common consensus

No. The Perl community is far too big to always reach an consensus, especially not for a topic that's subject to personal taste as much as this topic.

In reply to Re^3: Function signatures in POD-headlines/pseudo code! Is there a standard? by moritz
in thread Function signatures in POD-headlines/pseudo code! Is there a standard? by LanX

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