From 29da5da4bbe2f1626785bce5320079b6670d7e5e Mon Sep 17 00:00:00 2001
From: Martin Vrachev <mvrachev@vmware.com>
Date: Mon, 8 Nov 2021 19:30:49 +0200
Subject: [PATCH] Metadata API: make root roles Mapping

Mark roles as a Mapping to indicate that users should not add or remove
values from the dictionary during the lifetime of the Root object)

Signed-off-by: Martin Vrachev <mvrachev@vmware.com>
---
 tuf/api/metadata.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tuf/api/metadata.py b/tuf/api/metadata.py
index 25f14fe772..58c7f0fd2d 100644
--- a/tuf/api/metadata.py
+++ b/tuf/api/metadata.py
@@ -722,7 +722,7 @@ def __init__(
         spec_version: str,
         expires: datetime,
         keys: Dict[str, Key],
-        roles: Dict[str, Role],
+        roles: Mapping[str, Role],
         consistent_snapshot: Optional[bool] = None,
         unrecognized_fields: Optional[Mapping[str, Any]] = None,
     ):