first commit

sync_state_machine/engine/evaluator.py

@@ -0,0 +1,10 @@
+from __future__ import annotations
+
+from typing import Any, Mapping
+
+
+def guard_matches(guard: Mapping[str, Any], context: Mapping[str, Any]) -> bool:
+    for key, expected in guard.items():
+        if context.get(key) != expected:
+            return False
+    return True