Addressig black issues.

Author: scirelli

adafruit_ads1x15/ads1x15.py

@@ -77,11 +77,11 @@ def __init__(
         # pylint: disable=too-many-arguments
         self._last_pin_read = None
         self.buf = bytearray(3)
-        self._gain:float
+        self._gain: float
         self.gain = gain
         self._data_rate: int
         self.data_rate = self._data_rate_default() if data_rate is None else data_rate
-        self._mode:int
+        self._mode: int
         self.mode = mode
         self.i2c_device = I2CDevice(i2c, address)