Solution

app/main.py

@@ -2,5 +2,20 @@
 
 
 def cache(func: Callable) -> Callable:
-    # Write your code here
-    pass
+    save_result = {}
+
+    def inner(*args, **kwargs) -> Callable:
+        key_in_save_result = (func.__name__, args,)
+        for value in kwargs.values():
+            key_in_save_result.add(value)
+        if save_result:
+            if key_in_save_result in save_result:
+                print("Getting from cache")
+                return save_result[key_in_save_result]
+
+        print("Calculating new result")
+        result = func(*args)
+        save_result[key_in_save_result] = result
+        return result
+
+    return inner