+=attr entries
+
+Array of entries contained within the group.
+
+=attr groups
+
+Array of subgroups contained within the group.
+
+=cut
+
+# has uuid => sub { generate_uuid(printable => 1) };
+has name => '', coerce => \&to_string;
+has notes => '', coerce => \&to_string;
+has tags => '', coerce => \&to_string;
+has icon_id => ICON_FOLDER, coerce => \&to_icon_constant;
+has custom_icon_uuid => undef, coerce => \&to_uuid;
+has is_expanded => false, coerce => \&to_bool;
+has default_auto_type_sequence => '', coerce => \&to_string;
+has enable_auto_type => undef, coerce => \&to_tristate;
+has enable_searching => undef, coerce => \&to_tristate;
+has last_top_visible_entry => undef, coerce => \&to_uuid;
+# has custom_data => {};
+has previous_parent_group => undef, coerce => \&to_uuid;
+# has entries => [];
+# has groups => [];
+has times => {};
+
+has last_modification_time => sub { gmtime }, store => 'times', coerce => \&to_time;
+has creation_time => sub { gmtime }, store => 'times', coerce => \&to_time;
+has last_access_time => sub { gmtime }, store => 'times', coerce => \&to_time;
+has expiry_time => sub { gmtime }, store => 'times', coerce => \&to_time;
+has expires => false, store => 'times', coerce => \&to_bool;
+has usage_count => 0, store => 'times', coerce => \&to_number;
+has location_changed => sub { gmtime }, store => 'times', coerce => \&to_time;
+
+my @ATTRS = qw(uuid custom_data entries groups);
+sub _set_nonlazy_attributes {