Update skew_heap.py

Author: lighting9999

data_structures/heap/skew_heap.py

@@ -1,14 +1,13 @@
-#!/usr/bin/env python3
 
 from __future__ import annotations
 
 from collections.abc import Iterable, Iterator
-from typing import Any, Generic, TypeVar
+from typing import Any, TypeVar
 
-T = TypeVar("T", bound=bool)
+T = TypeVar("T")
 
 
-class SkewNode(Generic[T]):
+class SkewNode[T]:
     """
     One node of the skew heap. Contains the value and references to
     two children.
@@ -86,8 +85,7 @@ def merge(
 
         return result
 
-
-class SkewHeap(Generic[T]):
+class SkewHeap[T]:
     """
     A data structure that allows inserting a new value and to pop the smallest
     values. Both operations take O(logN) time where N is the size of the