fix bug

py-client/sdk/__init__.py

@@ -1,6 +1,6 @@
 from .client import Client
 from .errors import APIError, BusinessError
-from .models import Assets, OrderItem, Portfolio, PositionItem, Tick
+from .models import Assets, DealItem, OrderItem, Portfolio, PositionItem, Tick
 from .trade import (
     OP_BUY,
     OP_SELL,
@@ -9,11 +9,13 @@ from .trade import (
     PR_TYPE_LATEST,
     QUICK_TRADE_NOW,
 )
+
 __all__ = [
     "APIError",
     "Assets",
     "BusinessError",
     "Client",
+    "DealItem",
     "OP_BUY",
     "OP_SELL",
     "ORDER_SIDE_BY_OFFSET",