Function grin_wallet_libwallet::scan

pub fn scan<'a, L, C, K>(
    wallet_inst: Arc<Mutex<Box<dyn WalletInst<'a, L, C, K>>>>, 
    keychain_mask: Option<&SecretKey>, 
    delete_unconfirmed: bool, 
    start_height: u64, 
    end_height: u64, 
    status_send_channel: &Option<Sender<StatusMessage>>
) -> Result<ScannedBlockInfo, Error> where
    L: WalletLCProvider<'a, C, K>,
    C: NodeClient + 'a,
    K: Keychain + 'a, 

Check / repair wallet contents by scanning against chain assume wallet contents have been freshly updated with contents of latest block