Add trailing stoploss hyperspace

freqtrade/optimize/hyperopt_interface.py

@@ -8,7 +8,7 @@ import math
 from abc import ABC
 from typing import Dict, Any, Callable, List
 
-from skopt.space import Dimension, Integer, Real
+from skopt.space import Categorical, Dimension, Integer, Real
 
 from freqtrade import OperationalException
 from freqtrade.exchange import timeframe_to_minutes
@@ -174,6 +174,20 @@ class IHyperOpt(ABC):
             Real(-0.35, -0.02, name='stoploss'),
         ]
 
+    @staticmethod
+    def trailing_space() -> List[Dimension]:
+        """
+        Create a trailing stoploss space.
+
+        You may override it in your custom Hyperopt class.
+        """
+        return [
+            Categorical([True, False], name='trailing_stop'),
+            Real(-0.35, -0.02, name='trailing_stop_positive'),
+            Real(0.01, 0.1, name='trailing_stop_positive_offset'),
+            Categorical([True, False], name='trailing_only_offset_is_reached'),
+        ]
+
     # This is needed for proper unpickling the class attribute ticker_interval
     # which is set to the actual value by the resolver.
     # Why do I still need such shamanic mantras in modern python?