[libgpiod][PATCH v2 07/23] bindings: python: add type hint for the sec variable in poll_fd

[Vincent Fazio <vfazio@xxxxxxxxxxx>]

The sec variable can be either a float or None, so type it accordingly
to avoid complaints from type checkers.

Signed-off-by: Vincent Fazio <vfazio@xxxxxxxxxxx>
---
 bindings/python/gpiod/_internal.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/bindings/python/gpiod/_internal.py b/bindings/python/gpiod/_internal.py
index d1e95e4..c9b5d28 100644
--- a/bindings/python/gpiod/_internal.py
+++ b/bindings/python/gpiod/_internal.py
@@ -9,6 +9,7 @@ __all__ = ["poll_fd"]
 
 
 def poll_fd(fd: int, timeout: Optional[Union[timedelta, float]] = None) -> bool:
+    sec: Union[float, None]
     if isinstance(timeout, timedelta):
         sec = timeout.total_seconds()
     else:
-- 
2.34.1