Solution

app/main.py

@@ -1,6 +1,22 @@
 from typing import Callable
 
+from functools import wraps
+
 
 def cache(func: Callable) -> Callable:
-    # Write your code here
-    pass
+    cash_dict = {}
+
+    @wraps(func)
+    def compare_cash(*args) -> dict:
+        func_name = func.__name__
+
+        if (func_name, args) not in cash_dict:
+            print("Calculating new result")
+            result = func(*args)
+            cash_dict[(func_name, args)] = result
+            return result
+        else:
+            print("Getting from cache")
+            return cash_dict[(func_name, args)]
+
+    return compare_cash