message: [test] fix test compile.
diff: @@ -23,7 +23,11 @@ use starcoin_bus::{Broadcast, Bus, BusActor, Subscription};
  use std::{fmt::Debug, sync::Arc};
  use storage::StarcoinStorage;
  use traits::TxPoolAsyncService;
  -use types::{block::Block, transaction, transaction::SignedUserTransaction};
  +use types::{
  + block::{Block, BlockHeader},
  + transaction,
  + transaction::SignedUserTransaction,
  +};
  mod pool;
  mod pool_client;
  