black format

qlib/backtest/order.py

@@ -4,6 +4,7 @@ import pandas as pd
 from dataclasses import dataclass, field
 from typing import ClassVar
 
+
 @dataclass
 class Order:
     """
@@ -17,19 +18,18 @@ class Order:
     factor : float
             presents the weight factor assigned in Exchange()
     """
-    stock_id : str
-    amount : float
-    start_time : pd.Timestamp
-    end_time : pd.Timestamp
-    direction : int
-    factor : float
-    deal_amount : float = field(init=False)
-    SELL : ClassVar[int] = 0
-    BUY : ClassVar[int] = 1
-    
+
+    stock_id: str
+    amount: float
+    start_time: pd.Timestamp
+    end_time: pd.Timestamp
+    direction: int
+    factor: float
+    deal_amount: float = field(init=False)
+    SELL: ClassVar[int] = 0
+    BUY: ClassVar[int] = 1
 
     def __post_init__(self):
         if self.direction not in {Order.SELL, Order.BUY}:
             raise NotImplementedError("direction not supported, `Order.SELL` for sell, `Order.BUY` for buy")
         self.deal_amount = 0
-