use pip-installed circuitpython_typing instead of private copy

requirements-dev.txt

@@ -24,3 +24,6 @@ intelhex
 
 # for building & testing natmods
 pyelftools
+
+# for stubs and annotations
+adafruit-circuitpython-typing

shared-bindings/circuitpython_typing/__init__.pyi

@@ -1,69 +0,0 @@
-"""Types for the C-level protocols"""
-
-from typing import Union
-
-import alarm
-import alarm.pin
-import alarm.time
-import array
-import audiocore
-import audiomixer
-import audiomp3
-import rgbmatrix
-import ulab.numpy
-
-ReadableBuffer = Union[
-    bytes, bytearray, memoryview, array.array, ulab.numpy.ndarray, rgbmatrix.RGBMatrix
-]
-"""Classes that implement the readable buffer protocol
-
-  - `bytes`
-  - `bytearray`
-  - `memoryview`
-  - `array.array`
-  - `ulab.numpy.ndarray`
-  - `rgbmatrix.RGBMatrix`
-"""
-
-WriteableBuffer = Union[
-    bytearray, memoryview, array.array, ulab.numpy.ndarray, rgbmatrix.RGBMatrix
-]
-"""Classes that implement the writeable buffer protocol
-
-  - `bytearray`
-  - `memoryview`
-  - `array.array`
-  - `ulab.numpy.ndarray`
-  - `rgbmatrix.RGBMatrix`
-"""
-
-AudioSample = Union[
-    audiocore.WaveFile, audiocore.RawSample, audiomixer.Mixer, audiomp3.MP3Decoder, synthio.MidiTrack
-]
-"""Classes that implement the audiosample protocol
-
-  - `audiocore.WaveFile`
-  - `audiocore.RawSample`
-  - `audiomixer.Mixer`
-  - `audiomp3.MP3Decoder`
-  - `synthio.MidiTrack`
-
-  You can play these back with `audioio.AudioOut`, `audiobusio.I2SOut` or `audiopwmio.PWMAudioOut`.
-"""
-
-FrameBuffer = Union[rgbmatrix.RGBMatrix]
-"""Classes that implement the framebuffer protocol
-
-  - `rgbmatrix.RGBMatrix`
-"""
-
-Alarm = Union[
-    alarm.pin.PinAlarm, alarm.time.TimeAlarm
-]
-"""Classes that implement alarms for sleeping and asynchronous notification.
-
-  - `alarm.pin.PinAlarm`
-  - `alarm.time.TimeAlarm`
-
-  You can use these alarms to wake up from light or deep sleep.
-"""