From 3f9e61834b9b2e15a1b33d3bd386aea79c2ee439 Mon Sep 17 00:00:00 2001
From: Joseph Ware <joseph.ware@diamond.ac.uk>
Date: Fri, 8 Mar 2024 13:40:28 +0000
Subject: [PATCH] Remove use of Annotated

- get_type_hints(function) strips annotated metadata, and prevents checking for equality
---
 src/dodal/common/types.py | 15 ++++++---------
 1 file changed, 6 insertions(+), 9 deletions(-)

diff --git a/src/dodal/common/types.py b/src/dodal/common/types.py
index d721a890ab..1eeedcfa59 100644
--- a/src/dodal/common/types.py
+++ b/src/dodal/common/types.py
@@ -1,5 +1,4 @@
 from typing import (
-    Annotated,
     Any,
     Callable,
     Generator,
@@ -7,11 +6,9 @@
 
 from bluesky.utils import Msg
 
-Group = Annotated[str, "String identifier used by 'wait' or stubs that await"]
-MsgGenerator = Annotated[
-    Generator[Msg, Any, None],
-    "A true 'plan', usually the output of a generator function",
-]
-PlanGenerator = Annotated[
-    Callable[..., MsgGenerator], "A function that generates a plan"
-]
+# String identifier used by 'wait' or stubs that await
+Group = str
+# A true 'plan', usually the output of a generator function
+MsgGenerator = Generator[Msg, Any, None]
+# A function that generates a plan
+PlanGenerator = Callable[..., MsgGenerator]