NewProvider instantiates a new provider.

NewTestEnv construct a TestEnv for testing.

MetadataPresenceIndicator maintains the bookkeeping about whether metadata is ever set for a namespace.

PvtdataExpiry represents the bookkeeping related to expiry of pvtdata because of BTL policy.

TestEnv provides the bookkeeper provider env for testing.

Provider provides handle to different bookkeepers for the given ledger.

Category is an enum type for representing the bookkeeping of different type.