slice_id = sliver_info.get('slice_id', -1)
node_id = sliver_info.get('node_id', -1)
sliver_id = urn_to_sliver_id(sliver_urn, slice_id, node_id)
slice_id = sliver_info.get('slice_id', -1)
node_id = sliver_info.get('node_id', -1)
sliver_id = urn_to_sliver_id(sliver_urn, slice_id, node_id)