Use jinja2 in default YamlFSM

solvable/src/event_handler_main.py

@@ -103,7 +103,11 @@ if __name__ == '__main__':
     # TFW component EventHandlers (builtins, required for their respective functionalities)
     fsm = FSMManagingEventHandler( # TFW FSM
         key='fsm',
-        fsm_type=partial(YamlFSM, 'test_fsm.yml')
+        fsm_type=partial(
+            YamlFSM,
+            'test_fsm.yml',
+            {}  # jinja2 variables, use empty dict to enable jinja2 parsing without any variables
+        )
     )
     ide = IdeEventHandler(  # Web IDE backend
         key='ide',

solvable/src/test_fsm.yml

@@ -41,3 +41,8 @@ transitions:
     -   trigger: step_5
         source: '4'
         dest: '5'
+    {% for i in range(5) %}     # you can also use jinja2 in this config file
+    -   trigger: 'step_next'
+        source: '{{i}}'
+        dest: '{{i+1}}'
+    {% endfor %}