import com.google.common.base.Optional;
import com.google.common.base.Preconditions;
import java.net.InetSocketAddress;
import com.google.common.base.Optional;
import com.google.common.base.Preconditions;
import java.net.InetSocketAddress;
.add("address", address)
.add("connectionTimeoutMillis", connectionTimeoutMillis)
.add("additionalHeader", additionalHeader)
.add("address", address)
.add("connectionTimeoutMillis", connectionTimeoutMillis)
.add("additionalHeader", additionalHeader)