Type Alias pallet_session::historical::pallet::HistoricalSessions
source · pub type HistoricalSessions<T: Config> = StorageMap<_GeneratedPrefixForStorageHistoricalSessions<T>, Twox64Concat, SessionIndex, (T::Hash, ValidatorCount), OptionQuery>;
Expand description
Mapping from historical session indices to session-data root hash and validator count.
Storage type is [StorageMap
] with key type SessionIndex
and value type (T :: Hash, ValidatorCount)
.
Aliased Type§
struct HistoricalSessions<T: Config>(PhantomData<(_GeneratedPrefixForStorageHistoricalSessions<T>, Twox64Concat, u32, (<T as Config>::Hash, u32), OptionQuery, GetDefault, GetDefault)>);
Fields§
§0: PhantomData<(_GeneratedPrefixForStorageHistoricalSessions<T>, Twox64Concat, u32, (<T as Config>::Hash, u32), OptionQuery, GetDefault, GetDefault)>