one last step before tests

user_data/strategies/test_strategy.py

@@ -7,7 +7,7 @@ from pandas import DataFrame
 # Add your lib to import here
 import talib.abstract as ta
 import freqtrade.vendor.qtpylib.indicators as qtpylib
-import numpy # noqa
+import numpy  # noqa
 
 
 # This class is a sample. Feel free to customize it.
@@ -55,6 +55,12 @@ class TestStrategy(IStrategy):
         'stoploss': 'market'
     }
 
+    # Optional order time in force
+    order_types = {
+        'buy': 'gtc',
+        'sell': 'gtc'
+    }
+
     def populate_indicators(self, dataframe: DataFrame, metadata: dict) -> DataFrame:
         """
         Adds several different TA indicators to the given DataFrame