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

for more information, see https://pre-commit.ci

docs/index.rst

@@ -833,6 +833,7 @@ re-raised at the hook invocation point:
             print(exc)
             raise
 
+
     pm = PluginManager("myproject")
 
     # register plugins

src/pluggy/_callers.py

@@ -2,6 +2,7 @@
 Call loop machinery
 """
 from __future__ import annotations
+
 from typing import cast
 from typing import Generator
 from typing import List
@@ -29,17 +30,17 @@
 
 def _multicall(
     hook_name: str,
-    hook_impls: Sequence["HookImpl"],
+    hook_impls: Sequence[HookImpl],
     caller_kwargs: Mapping[str, object],
     firstresult: bool,
-) -> Union[object, List[object]]:
+) -> object | list[object]:
     """Execute a call into multiple python functions/methods and return the
     result(s).
 
     ``caller_kwargs`` comes from _HookCaller.__call__().
     """
     __tracebackhide__ = True
-    results: List[object] = []
+    results: list[object] = []
     exception = None
     try:  # run impl and wrapper setup functions in a loop
         teardowns: list[Teardown] = []
@@ -84,7 +85,7 @@ def _multicall(
             exception = exc
     finally:
         if firstresult:  # first result hooks return a single value
-            outcome: _Result[Union[object, List[object]]] = _Result(
+            outcome: _Result[object | list[object]] = _Result(
                 results[0] if results else None, exception
             )
         else: