autodoc additions

docs/conf.py

@@ -18,7 +18,7 @@ extensions = [
 # Uncomment the below if you use native CircuitPython modules such as
 # digitalio, micropython and busio. List the modules you use. Without it, the
 # autodoc module docs will fail to generate with a warning.
-autodoc_mock_imports = ["machine"]
+autodoc_mock_imports = ["machine", "Adafruit_GPIO"]
 
 intersphinx_mapping = {'python': ('https://docs.python.org/3.4', None),
                        'CircuitPython': ('https://circuitpython.readthedocs.io/en/latest/', None)}