changes per reviewer suggestions

Author: tcfranks

adafruit_pcf8591/analog_in.py

@@ -29,18 +29,19 @@
 
 try:
     import typing  # pylint: disable=unused-import
+    from adafruit_pcf8591.pcf8591.PCF8591 import PCF8591
 except ImportError:
     pass
 
 
 class AnalogIn:
     """AnalogIn Mock Implementation for ADC Reads."""
 
-    def __init__(self, pcf: "PCF8591", pin: int) -> None:
+    def __init__(self, pcf: PCF8591, pin: int) -> None:
         """AnalogIn
 
-        :param ads: The PCF8591 object.
-        :param ~digitalio.DigitalInOut pin: Required ADC channel pin.
+        :param pcf: The PCF8591 object.
+        :param int pin: Required ADC channel pin.
 
         """
         self._pcf = pcf

adafruit_pcf8591/analog_out.py

@@ -28,18 +28,19 @@
 """
 try:
     import typing  # pylint: disable=unused-import
+    from adafruit_pcf8591.pcf8591.PCF8591 import PCF8591
 except ImportError:
     pass
 
 
 class AnalogOut:
     """AnalogIn Mock Implementation for ADC Reads."""
 
-    def __init__(self, pcf: "PCF8591", dac_pin: int = 0) -> None:
+    def __init__(self, pcf: PCF8591, dac_pin: int = 0) -> None:
         """AnalogIn
 
         :param pcf: The pcf object.
-        :param ~digitalio.DigitalInOut DAC pin: Required pin must be P4
+        :param int pin: Required pin must be A0
 
         """
         self._pcf = pcf

adafruit_pcf8591/pcf8591.py

@@ -100,7 +100,7 @@ def _half_read(self, channel: Literal[0, 1, 2, 3]) -> None:
     def read(self, channel: Literal[0, 1, 2, 3]) -> None:
         """Read an analog value from one of the four ADC inputs
 
-        param: :channel The single-ended ADC channel to read from, 0 thru 3
+        param: int channel The single-ended ADC channel to read from, 0 thru 3
         """
         if channel < 0 or channel > 3:
             raise ValueError("channel must be from 0-3")