Type Definition pallet_keystore::pallet::IssuedKeys

pub type IssuedKeys<T: Config> = StorageDoubleMap<_GeneratedPrefixForStorageIssuedKeys<T>, Blake2_128Concat, T::AccountId, Blake2_128Concat, Vec<u8>, Vec<u8>>;

This module’s main storage will consist of a StorageDoubleMap connecting addresses to the list of keys they’ve submitted and not revoked.