if not isinstance(slivers, list):
slivers = [slivers]
for sliver in slivers:
- sliver_elem = Element.add_elements(xml, 'sliver_type', sliver, ['type', 'client_id'])
+ sliver_elem = xml.add_instance('sliver_type', sliver, ['type', 'client_id'])
PGv2SliverType.add_sliver_attributes(sliver_elem, sliver.get('pl_tags', []))
@staticmethod