Addressing PR updates

Author: scirelli

adafruit_ads1x15/ads1015.py

@@ -64,7 +64,7 @@ def rate_config(self) -> Dict[int, int]:
         """Rate configuration masks."""
         return _ADS1015_CONFIG_DR
 
-    def _data_rate_default(self) -> int:
+    def _data_rate_default(self) -> Literal[1600]:
         return 1600
 
     def _conversion_value(self, raw_adc: int) -> int:

adafruit_ads1x15/ads1115.py

@@ -65,7 +65,7 @@ def rate_config(self) -> Dict[int, int]:
         """Rate configuration masks."""
         return _ADS1115_CONFIG_DR
 
-    def _data_rate_default(self) -> int:
+    def _data_rate_default(self) -> Literal[128]:
         return 128
 
     def _conversion_value(self, raw_adc: int) -> int: