Fix dangerous default argument (#14)

Author: deepsource-autofix[bot]

src/Actions.py

@@ -1,7 +1,8 @@
 class Actions:
-    def __init__(self, actions = []):
+    def __init__(self, actions = None):
+        if actions is None:
+            actions = []
         self.actions = actions
-        
     @staticmethod
     def to_string():
         result_s = ""

src/Conditions.py

@@ -1,5 +1,7 @@
 class Conditions:
-    def __init__(self, conditions = [] ):
+    def __init__(self, conditions = None ):
+        if conditions is None:
+            conditions = []
         self.conditions = conditions
 
     @staticmethod

src/State.py

@@ -1,5 +1,7 @@
 class State:
-    def __init__(self, name: str, events = {}):
+    def __init__(self, name: str, events = None):
+        if events is None:
+            events = {}
         self.name = name
         self.events = events