Solution

app/main.py

@@ -1,6 +1,21 @@
-from typing import Callable
+from typing import Callable, Any
+
+
+def check_in_cache(run_results: dict, func: Callable, *args: Any,
+                   **kwargs: Any, ) -> dict:
+    if args in run_results:
+        print("Getting from cache")
+    else:
+        print("Calculating new result")
+        run_results[args] = func(*args, **kwargs)
+    return run_results[args]
 
 
 def cache(func: Callable) -> Callable:
-    # Write your code here
-    pass
+    run_results = {}
+
+    def wrapper(*args: Any, **kwargs: Any) -> dict:
+        cache_answer = check_in_cache(run_results, func, *args, **kwargs)
+        return cache_answer
+
+    return wrapper