From 8948bb1adc11e1c1810735ffec9db49ff81fb8ec Mon Sep 17 00:00:00 2001
From: Alec Delaney <tekktrik@gmail.com>
Date: Fri, 20 May 2022 21:42:00 -0400
Subject: [PATCH 1/2] Add io.py

---
 circuitpython_typing/io.py | 44 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 44 insertions(+)
 create mode 100644 circuitpython_typing/io.py

diff --git a/circuitpython_typing/io.py b/circuitpython_typing/io.py
new file mode 100644
index 0000000..49c8567
--- /dev/null
+++ b/circuitpython_typing/io.py
@@ -0,0 +1,44 @@
+# SPDX-FileCopyrightText: Copyright (c) 2022 Alec Delaney
+#
+# SPDX-License-Identifier: MIT
+
+"""
+`circuitpython_typing.io`
+================================================================================
+
+Type annotation definitions for IO-related objects
+
+* Author(s): Alec Delaney
+"""
+
+# Protocol was introduced in Python 3.8.
+try:
+    from typing import Protocol
+except ImportError:
+    from typing_extensions import Protocol
+
+class ROValueIO(Protocol):
+    """Hardware objects, like `analogio.AnalogIn`, that have read-only
+    ``value`` properties/attributes.
+    """
+
+    @property
+    def value(self) -> float:
+        """Value property, that may return an `int` or `float` depending
+        on the specifics of the class.
+        """
+
+class ValueIO(Protocol):
+    """Hardware objects, like `analogio.AnalogOut`, that have read and
+    write ``value`` properties/attributes.
+    """
+
+    @property
+    def value(self) -> float:
+        """Value property, that may return an `int` or `float` depending
+        on the specifics of the class.
+        """
+
+    @value.setter
+    def value(self, input_value: float, /):
+        ...

From a11a06a9b043d6828ad672e75d292861af4415df Mon Sep 17 00:00:00 2001
From: Alec Delaney <tekktrik@gmail.com>
Date: Fri, 20 May 2022 21:50:01 -0400
Subject: [PATCH 2/2] Reformatted per pre-commit

---
 circuitpython_typing/io.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/circuitpython_typing/io.py b/circuitpython_typing/io.py
index 49c8567..05b6e62 100644
--- a/circuitpython_typing/io.py
+++ b/circuitpython_typing/io.py
@@ -17,6 +17,7 @@
 except ImportError:
     from typing_extensions import Protocol
 
+
 class ROValueIO(Protocol):
     """Hardware objects, like `analogio.AnalogIn`, that have read-only
     ``value`` properties/attributes.
@@ -28,6 +29,7 @@ def value(self) -> float:
         on the specifics of the class.
         """
 
+
 class ValueIO(Protocol):
     """Hardware objects, like `analogio.AnalogOut`, that have read and
     write ``value`` properties/attributes.