Type Definition pallet_staking::ErasStartSessionIndex

pub type ErasStartSessionIndex<T> = StorageMap<_GeneratedPrefixForStorageErasStartSessionIndex<T>, Twox64Concat, EraIndex, SessionIndex>;

The session index at which the era start for the last HISTORY_DEPTH eras.

Note: This tracks the starting session (i.e. session index when era start being active) for the eras in [CurrentEra - HISTORY_DEPTH, CurrentEra].

Storage type is StorageMap with key type EraIndex and value type SessionIndex.