solution implemented

app/main.py

@@ -1,25 +1,66 @@
 from abc import ABC
+from typing import Callable
 
 
 class IntegerRange:
-    pass
 
+    def __init__(self, min_amount: int, max_amount: int) -> None:
+        self.min_amount = min_amount
+        self.max_amount = max_amount
 
-class Visitor:
-   pass
+    def __set_name__(self, owner: Callable, name: str) -> None:
+        self.protected_name = "_" + name
+
+    def __get__(self, instance: Callable, owner: Callable) -> int:
+        print(type(getattr(instance, self.protected_name)))
+        return getattr(instance, self.protected_name)
+
+    def __set__(self, instance: Callable, value: int) -> None:
+        if self.min_amount <= value <= self.max_amount:
+            setattr(instance, self.protected_name, value)
 
 
 class SlideLimitationValidator(ABC):
-    pass
+    def __init__(self, age: int, height: int, weight: int) -> None:
+        self.age = age
+        self.height = height
+        self.weight = weight
 
 
 class ChildrenSlideLimitationValidator(SlideLimitationValidator):
-    pass
+    age = IntegerRange(4, 14)
+    height = IntegerRange(80, 120)
+    weight = IntegerRange(20, 50)
 
 
 class AdultSlideLimitationValidator(SlideLimitationValidator):
-    pass
+    age = IntegerRange(14, 60)
+    height = IntegerRange(120, 220)
+    weight = IntegerRange(50, 120)
+
+
+class Visitor:
+    def __init__(self, name: str, age: int, height: int, weight: int) -> None:
+        self.name = name
+        self.age = age
+        self.height = height
+        self.weight = weight
 
 
 class Slide:
-    pass
+    def __init__(self, name: str, limitation_class: Callable) -> None:
+        self.name = name
+        self.limitation_class = limitation_class
+
+    def can_access(self, visitor: Visitor) -> bool:
+
+        result = self.limitation_class(
+            visitor.age,
+            visitor.height,
+            visitor.weight
+        )
+
+        for attribute in ("_age", "_height", "_weight"):
+            if attribute not in result.__dict__:
+                return False
+        return True