cture for purposes of modules like L<Data::Dumper> or
serialisation into things like C<YAML> or C<JSON>.
:repr(keys)
I<Since version 0.803.>
The representation will be a blessed hash reference. ave predictably with data printing modules like L<Data::Dumper> or
serialisation via C<YAML> or C<JSON>.
These two hash-based representation types may be useful when converting
existing classes into