[pyserial] Fix write method

Author: guillaume-mueller

stubs/pyserial/serial/serialcli.pyi

@@ -12,7 +12,7 @@ class Serial(SerialBase):
     @property
     def in_waiting(self) -> int: ...
     def read(self, size: int = 1) -> bytes: ...
-    def write(self, b: ReadableBuffer, /) -> int | None: ...
+    def write(self, data: ReadableBuffer) -> int: ...
     def reset_input_buffer(self) -> None: ...
     def reset_output_buffer(self) -> None: ...
     @property

stubs/pyserial/serial/serialjava.pyi

@@ -17,7 +17,7 @@ class Serial(SerialBase):
     @property
     def in_waiting(self) -> int: ...
     def read(self, size: int = 1) -> bytes: ...
-    def write(self, b: ReadableBuffer, /) -> int | None: ...
+    def write(self, data: ReadableBuffer) -> int: ...
     def reset_input_buffer(self) -> None: ...
     def reset_output_buffer(self) -> None: ...
     @property

stubs/pyserial/serial/serialposix.pyi

@@ -68,7 +68,7 @@ class Serial(SerialBase, PlatformSpecific):
     def read(self, size: int = 1) -> bytes: ...
     def cancel_read(self) -> None: ...
     def cancel_write(self) -> None: ...
-    def write(self, b: ReadableBuffer, /) -> int | None: ...
+    def write(self, data: ReadableBuffer) -> int: ...
     def reset_input_buffer(self) -> None: ...
     def reset_output_buffer(self) -> None: ...
     def send_break(self, duration: float = 0.25) -> None: ...

stubs/pyserial/serial/serialwin32.pyi

@@ -7,7 +7,7 @@ class Serial(SerialBase):
     @property
     def in_waiting(self) -> int: ...
     def read(self, size: int = 1) -> bytes: ...
-    def write(self, b: ReadableBuffer, /) -> int | None: ...
+    def write(self, data: ReadableBuffer) -> int: ...
     def reset_input_buffer(self) -> None: ...
     def reset_output_buffer(self) -> None: ...
     @property