Fix function header formatting

docs/strategy-advanced.md

@@ -168,8 +168,8 @@ class Awesomestrategy(IStrategy):
 
     # ... populate_* methods
 
-    def confirm_trade_exit(self, pair: str, trade: Trade, order_type: str, amount: float, rate: float,
-                           time_in_force: str, sell_reason: str, ** kwargs) -> bool:
+    def confirm_trade_exit(self, pair: str, trade: Trade, order_type: str, amount: float,
+                           rate: float, time_in_force: str, sell_reason: str, **kwargs) -> bool:
         """
         Called right before placing a regular sell order.
         Timing for this function is critical, so avoid doing heavy computations or

freqtrade/strategy/interface.py

@@ -221,8 +221,8 @@ class IStrategy(ABC):
         """
         return True
 
-    def confirm_trade_exit(self, pair: str, trade: Trade, order_type: str, amount: float, rate: float,
-                           time_in_force: str, sell_reason: str, ** kwargs) -> bool:
+    def confirm_trade_exit(self, pair: str, trade: Trade, order_type: str, amount: float,
+                           rate: float, time_in_force: str, sell_reason: str, **kwargs) -> bool:
         """
         Called right before placing a regular sell order.
         Timing for this function is critical, so avoid doing heavy computations or

freqtrade/templates/subtemplates/strategy_methods_advanced.j2

@@ -34,8 +34,8 @@ def confirm_trade_entry(self, pair: str, order_type: str, amount: float, rate: f
     """
     return True
 
-def confirm_trade_exit(self, pair: str, trade: 'Trade', order_type: str, amount: float, rate: float,
-                       time_in_force: str, sell_reason: str, ** kwargs) -> bool:
+def confirm_trade_exit(self, pair: str, trade: Trade, order_type: str, amount: float,
+                       rate: float, time_in_force: str, sell_reason: str, **kwargs) -> bool:
     """
     Called right before placing a regular sell order.
     Timing for this function is critical, so avoid doing heavy computations or

tests/strategy/test_interface.py

@@ -9,7 +9,7 @@ from pandas import DataFrame
 
 from freqtrade.configuration import TimeRange
 from freqtrade.data.history import load_data
-from freqtrade.exceptions import StrategyError, OperationalException
+from freqtrade.exceptions import StrategyError
 from freqtrade.persistence import Trade
 from freqtrade.resolvers import StrategyResolver
 from freqtrade.strategy.strategy_wrapper import strategy_safe_wrapper