These methods list the content of the "f1" folder:
DTML
<dtml-in "f1.objectValues()"> <dtml-var id>: <dtml-var sequence-item> </dtml-in> done
PythonMethod
for item in self["f1"].objectValues(): print item.id(), ": ", item print "done" return printed
PerlMethod
my @res; for ($self->{f1}->objectValues) { push(@res, join(": ", $_->id, $_)); } join("\n", @res, "done");