refactor: _send_request should not return bytearray

This function should just send data to breezer and should not return response.

Author: IATkachenko

tion_btle/s3.py

@@ -137,5 +137,5 @@ def _encode_request(self, request: dict) -> bytearray:
                     self._encode_status(request["sound"]) << 3)
         return new_settings
 
-    def _send_request(self, request: bytearray) -> bytearray:
+    def _send_request(self, request: bytearray):
         self._do_action(self._try_write, request=request)

tion_btle/tion.py

@@ -113,7 +113,7 @@ def __init__(self, mac: str):
             self._get_data_from_breezer = self._get_data_from_breezer_dummy
 
     @abc.abstractmethod
-    def _send_request(self, request: bytearray) -> bytearray:
+    def _send_request(self, request: bytearray):
         """ Send request to device
 
         Args: