[pre-commit.ci] auto fixes from pre-commit.com hooks

Author: pre-commit-ci[bot]

stdlib/heapq.pyi

@@ -18,12 +18,15 @@ __about__: Final[str]
 def merge(*iterables: Iterable[_S], key: Callable[[_S], SupportsRichComparison], reverse: bool = False) -> Generator[_S]: ...
 @overload
 def merge(*iterables: Iterable[_T], key: None = None, reverse: bool = False) -> Generator[_T]: ...
+
 @overload
 def nlargest(n: int, iterable: Iterable[_S], key: Callable[[_S], SupportsRichComparison]) -> list[_S]: ...
 @overload
 def nlargest(n: int, iterable: Iterable[_T], key: None = None) -> list[_T]: ...
+
 @overload
 def nsmallest(n: int, iterable: Iterable[_S], key: Callable[[_S], SupportsRichComparison]) -> list[_S]: ...
 @overload
 def nsmallest(n: int, iterable: Iterable[_T], key: None = None) -> list[_T]: ...
+
 def _heapify_max(heap: list[SupportsRichComparison], /) -> None: ...  # undocumented