diff --git a/setup.cfg b/setup.cfg
index 8dad329c..64a4f48c 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -40,3 +40,4 @@ exclude_lines =
     pragma: no cover
     pragma: nocover
     if typing.TYPE_CHECKING:
+    @typing.overload
diff --git a/starlette/config.py b/starlette/config.py
index a4abf49a..8c58b273 100644
--- a/starlette/config.py
+++ b/starlette/config.py
@@ -61,21 +61,17 @@ class Config:
             self.file_values = self._read_file(env_file)
 
     @typing.overload
-    def __call__(
-        self, key: str, *, default: None
-    ) -> typing.Optional[str]:  # pragma: no cover
+    def __call__(self, key: str, *, default: None) -> typing.Optional[str]:
         ...
 
     @typing.overload
-    def __call__(
-        self, key: str, cast: typing.Type[T], default: T = ...
-    ) -> T:  # pragma: no cover
+    def __call__(self, key: str, cast: typing.Type[T], default: T = ...) -> T:
         ...
 
     @typing.overload
     def __call__(
         self, key: str, cast: typing.Type[str] = ..., default: str = ...
-    ) -> str:  # pragma: no cover
+    ) -> str:
         ...
 
     @typing.overload
@@ -84,13 +80,13 @@ class Config:
         key: str,
         cast: typing.Callable[[typing.Any], T] = ...,
         default: typing.Any = ...,
-    ) -> T:  # pragma: no cover
+    ) -> T:
         ...
 
     @typing.overload
     def __call__(
         self, key: str, cast: typing.Type[str] = ..., default: T = ...
-    ) -> typing.Union[T, str]:  # pragma: no cover
+    ) -> typing.Union[T, str]:
         ...
 
     def __call__(