fixup! refactor: initial Python class definition

Author: yochem

spidev/_spi.py

@@ -22,18 +22,17 @@ def as_int(val: Any, name: str = "Value") -> int:
 class SpiDev(_cspi.SpiDev):
     def __init__(
         self,
-        bus: int | None,
-        client: int | None,
+        bus: int | None = None,
         device: int | None = None,
+        *,
         path: StrPath | None = None,
         mode: int | None = None,
         bits_per_word: int | None = None,
         max_speed_hz: int | None = None,
     ):
-        super().__init__(bus, client)
+        super().__init__(bus, device)
 
         self.bus = bus
-        self.client = client
         self.device = device
         if path and (bus or device):
             raise ValueError(