From 6df1eb17a2bf2eb684ea9349d8ec26d3485e25bf Mon Sep 17 00:00:00 2001
From: Manuel Giffels <giffels@gmail.com>
Date: Fri, 24 Jun 2022 12:25:52 +0200
Subject: [PATCH] Allow empty machine_type_configuration

---
 tardis/interfaces/siteadapter.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tardis/interfaces/siteadapter.py b/tardis/interfaces/siteadapter.py
index 68f5e406..dd82bb1c 100644
--- a/tardis/interfaces/siteadapter.py
+++ b/tardis/interfaces/siteadapter.py
@@ -20,7 +20,7 @@ class SiteAdapterBaseModel(BaseModel):
     """
 
     MachineTypes: List[str]
-    MachineTypeConfiguration: "AttributeDict[str, AttributeDict[str, Any]]"
+    MachineTypeConfiguration: "AttributeDict[str, Optional[AttributeDict[str, Any]]]"
     MachineMetaData: "AttributeDict[str, AttributeDict[str, Any]]"
     # Use Any to avoid automated conversion to int or float here, validate later