ruff formatted

maildir_gtd/utils.py

@@ -2,6 +2,7 @@ from datetime import datetime, timedelta
 import re
 from typing import List, Dict
 
+
 def group_envelopes_by_date(envelopes: List[Dict]) -> List[Dict]:
     """Group envelopes by date and add headers for each group."""
     grouped_envelopes = []
@@ -30,7 +31,7 @@ def group_envelopes_by_date(envelopes: List[Dict]) -> List[Dict]:
 
     current_group = None
     for envelope in envelopes:
-        envelope_date = re.sub(r"[\+\-]\d\d:\d\d", "", envelope['date'])
+        envelope_date = re.sub(r"[\+\-]\d\d:\d\d", "", envelope["date"])
         envelope_date = datetime.strptime(envelope_date, "%Y-%m-%d %H:%M")
         group_label = get_group_label(envelope_date)
         if group_label != current_group: