Type Alias BlockHash 

pub type BlockHash<T: Config> = StorageMap<_GeneratedPrefixForStorageBlockHash<T>, Twox64Concat, BlockNumberFor<T>, T::Hash, ValueQuery>;

Map of block numbers to block hashes.

Storage type is [StorageMap] with key type BlockNumberFor < T > and value type T :: Hash.

Aliased Type

pub struct BlockHash<T: Config>(/* private fields */);