Solution1

app/main.py

@@ -1,25 +1,82 @@
 from abc import ABC
+from typing import Any
 
 
 class IntegerRange:
-    pass
+    def __init__(self,
+                 min_amount: int,
+                 max_amount: int) -> None:
+        self.min_amount = min_amount
+        self.max_amount = max_amount
+
+    def __set_name__(self, owner: Any, name: str) -> Any:
+        self.protected_name = "_" + name
+
+    def __get__(self, instance: Any, value: Any) -> int:
+        return getattr(instance, self.protected_name)
+
+    def __set__(self, instance: Any, value: Any) -> None:
+        if not isinstance(value, int):
+            raise TypeError("Grade should be integer")
+        if self.min_amount > value or value > self.max_amount:
+            raise ValueError("Grade should not be less than "
+                             "2 and greater than 12")
+        setattr(instance, self.protected_name, value)
 
 
 class Visitor:
-   pass
+    def __init__(self,
+                 name: str,
+                 age: int,
+                 weight: int,
+                 height: int) -> None:
+        self.name = name
+        self.age = age
+        self.weight = weight
+        self.height = height
 
 
 class SlideLimitationValidator(ABC):
-    pass
+
+    def __init__(self,
+                 age: int,
+                 weight: int,
+                 height: int) -> None:
+        self.age = age
+        self.weight = weight
+        self.height = height
 
 
 class ChildrenSlideLimitationValidator(SlideLimitationValidator):
-    pass
+    age = IntegerRange(4, 14)
+    height = IntegerRange(80, 120)
+    weight = IntegerRange(20, 50)
+
+    def __init__(self, age: int, weight: int, height: int) -> None:
+        super().__init__(age, weight, height)
 
 
 class AdultSlideLimitationValidator(SlideLimitationValidator):
-    pass
+    age = IntegerRange(14, 60)
+    height = IntegerRange(120, 220)
+    weight = IntegerRange(50, 120)
+
+    def __init__(self, age: int, weight: int, height: int) -> None:
+        super().__init__(age, weight, height)
 
 
 class Slide:
-    pass
+    def __init__(self,
+                 name: str,
+                 limitation_class:
+                 ChildrenSlideLimitationValidator
+                 or AdultSlideLimitationValidator) -> None:
+        self.name = name
+        self.limitation_class = limitation_class
+
+    def can_access(self, visitor: Visitor) -> bool:
+        try:
+            self.limitation_class(visitor.age, visitor.weight, visitor.height)
+            return True
+        except (TypeError, ValueError):
+            return False