Sorry, yes it does. Found it!

https://github.com/gisle/tcl.pm/blob/master/Tcl.pm lines 502-518

elsif ($ref eq 'ARRAY' && ref($arg->[0]) eq 'CODE') {
    # We have been passed something like [\&subroutine, $arg1, ...]
    # Create a proc in Tcl that invokes this subroutine with args
    my $events;
    # Look for Tcl::Ev objects as the first arg - these must be
    # passed through for Tcl to evaluate.  Used primarily for %-subs
    # This could check for any arg ref being Tcl::Ev obj, but it
    # currently doesn't.
    if ($#$arg >= 1 && ref($arg->[1]) eq 'Tcl::Ev') {
    $events = splice(@$arg, 1, 1);
    }
    $args[$argcnt] =
    $interp->create_tcl_sub(sub {
        $arg->[0]->(@_, @$arg[1..$#$arg]);
    }, $events, undef, $current_r);
    push @codes, $anon_refs{$current_r};
}
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Sorry, better luck next time!