pub fn account_key_hash(account: &AccountId) -> Vec<u8> {
    storage_map_key(
        "System",
        "Account",
        account,
        &StorageHasher::Blake2_128Concat,
    )
}
// get the AccountInfo key where the account is stored
get the AccountInfo key where the account is stored
get the AccountInfo key where the account is stored
pub fn account_key_hash(account: &AccountId) -> Vec<u8> {
    storage_map_key(
        "System",
        "Account",
        account,
        &StorageHasher::Blake2_128Concat,
    )
}
pub fn account_key_hash ( account : & AccountId ) -> Vec < u8 > { storage_map_key ( " " , " " , account , & StorageHasher :: Blake2_128Concat , ) }
get the AccountInfo key where the account is stored
get the AccountInfo key where the account is stored
account
&AccountId
account
&AccountId