import com.google.common.util.concurrent.AsyncFunction;
import com.google.common.util.concurrent.FutureCallback;
import com.google.common.util.concurrent.Futures;
import com.google.common.util.concurrent.ListenableFuture;
import com.greenaddress.greenapi.GAException;
<BUG>import com.greenaddress.greenapi.Network;
import com.greenaddress.greenapi.Output;</BUG>
import com.greenaddress.greenapi.PreparedTransaction;
import com.greenaddress.greenbits.GaService;
import com.greenaddress.greenbits.wallets.TrezorHWWallet;

import com.google.common.util.concurrent.AsyncFunction;
import com.google.common.util.concurrent.FutureCallback;
import com.google.common.util.concurrent.Futures;
import com.google.common.util.concurrent.ListenableFuture;
import com.greenaddress.greenapi.GAException;
import com.greenaddress.greenapi.Network;
import com.greenaddress.greenapi.JSONMap;
import com.greenaddress.greenapi.Output;
import com.greenaddress.greenapi.PreparedTransaction;
import com.greenaddress.greenbits.GaService;
import com.greenaddress.greenbits.wallets.TrezorHWWallet;
