from sfa.util.faults import InsufficientRights
from sfa.util.xrn import urn_to_hrn
from sfa.util.method import Method
-from sfa.util.parameter import Parameter
-from sfa.trust.credential import Credential
from sfa.util.sfatime import utcparse
+from sfa.trust.credential import Credential
+
+from sfa.storage.parameter import Parameter
+
class RenewSliver(Method):
"""
Renews the resources in a sliver, extending the lifetime of the slice.