From 02f868ca9688221479b69cad84bffee443bb9203 Mon Sep 17 00:00:00 2001
From: "John T. Wodder II" <git@varonathe.org>
Date: Thu, 2 May 2024 10:15:08 -0400
Subject: [PATCH] Fix typing

---
 src/eletter/classes.py | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/eletter/classes.py b/src/eletter/classes.py
index a71a237..8c01c81 100644
--- a/src/eletter/classes.py
+++ b/src/eletter/classes.py
@@ -830,7 +830,9 @@ def _compile(self) -> EmailMessage:
         if self.content_id is not None:
             msg["Content-ID"] = self.content_id
         if ctype is None:
-            ctype = msg.get_payload()[0].get_content_type()
+            rel1 = msg.get_payload(0)
+            assert isinstance(rel1, EmailMessage)
+            ctype = rel1.get_content_type()
         msg.set_param("type", ctype)
         if self.start is not None:
             msg.set_param("start", self.start)