review fixes

Author: samatjain

adafruit_tinylora/adafruit_tinylora.py

@@ -34,11 +34,13 @@
 from adafruit_tinylora.adafruit_tinylora_encryption import AES
 
 try:  # typing
-    from typing import Annotated, Optional, TypeAlias, Union
+    from types import TracebackType
+    from typing import Optional, Type, Union
 
-    import busio.SPI
-    import digitalio.DigitalInOut
+    import busio
+    import digitalio
     from typing_extensions import Self  # Python <3.11
+    from typing_extensions import Annotated, TypeAlias
 
     # type aliases
     bytearray2: TypeAlias = Annotated[bytearray, 2]
@@ -237,7 +239,12 @@ def __init__(
     def __enter__(self) -> Self:
         return self
 
-    def __exit__(self, exception_type, exception_value, traceback) -> None:
+    def __exit__(
+        self,
+        exception_type: Optional[Type[type]],
+        exception_value: Optional[BaseException],
+        traceback: Optional[TracebackType],
+    ) -> None:
         self.deinit()
 
     def deinit(self) -> None:
@@ -301,9 +308,7 @@ def send_data(
         lora_pkt_len += 4
         self.send_packet(lora_pkt, lora_pkt_len, timeout)
 
-    def send_packet(
-        self, lora_packet: bytearray, packet_length: int, timeout: int
-    ) -> None:
+    def send_packet(self, lora_packet: bytearray, packet_length: int, timeout: int) -> None:
         """Sends a LoRa packet using the RFM Module
         :param bytearray lora_packet: assembled LoRa packet from send_data
         :param int packet_length: length of LoRa packet to send