you may be interested in #57091
With combined, you can do

combined mapAttrsToList attrs (name: value:
  ... blabla
)

combined "sep" mapAttrsToList attrs (name: value:
  ... blabla
)

Not clear what problem this solves. I think this does introduce a problem with readability because "mapAttrsToStringSep" doesn't bear a very clear meaning.

Thank you for your contributions.

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I marked this as stale due to inactivity. → More info

Killing as already dead :(