[Clucene-perl] Questions about API compatibility with Document class

[Seth R. <set...@gm...>]

I'm looking at the source code for CLucene (0.9.20) and see that there
is a function that seems to be very handy when one doesn't know
exactly what type of documents one is dealing with (say if you want to
'explore' the index):

/** Returns an Enumeration of all the fields in a document. */
        DocumentFieldEnumeration* fields() const;

When I attempt to access that method via the following perl code

#file system store
my $store = Lucene::Store::FSDirectory->getDirectory("/home/me/lucene", 0);

my $reader = Lucene::Index::IndexReader->open($store);

# get number of docs in index
my $num_docs = $reader->numDocs();
print "Found $num_docs in the index\n";
# get the nth document
for (my $count = 0; $count < $num_docs ; $count++) {
    my $document = $reader->document($count);
    my $fields = $document->fields;
    print Dumper($fields);
}

I get this error:

Can't locate object method "fields" via package "Lucene::Document"

Am I doing something wrong here, or is this method just not accessible
via Lucene.pm?

Thanks,

Seth