From d2605cb72d7cdbc7d3cc633b94a451c0acd2edbb Mon Sep 17 00:00:00 2001
From: Frederick Muriuki Muriithi
Date: Wed, 15 Jun 2022 09:36:18 +0300
Subject: Fix linting and type errors

---
 quality_control/headers.py | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

(limited to 'quality_control/headers.py')

diff --git a/quality_control/headers.py b/quality_control/headers.py
index 79d7e43..f4f4dad 100644
--- a/quality_control/headers.py
+++ b/quality_control/headers.py
@@ -27,14 +27,15 @@ def invalid_headings(
         enumerate(headings, start=2) if header not in strains)
 
 def duplicate_headings(
-        line_number: int, headers: Sequence[str]) -> Union[InvalidValue, None]:
+        line_number: int,
+        headers: Sequence[str]) -> Tuple[DuplicateHeading, ...]:
     """Return a tuple of `DuplicateHeading` objects for each column heading that
     is a duplicate of another column heading."""
     def __update_columns__(acc, item):
         if item[1] in acc.keys():
             return {**acc, item[1]: acc[item[1]] + (item[0],)}
         return {**acc, item[1]: (item[0],)}
-    repeated = {
+    repeated = {# type: ignore[var-annotated]
         heading: columns for heading, columns in
         reduce(__update_columns__, enumerate(headers, start=1), {}).items()
         if len(columns) > 1
-- 
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