[pre-commit.ci] auto fixes from pre-commit.com hooks

pre-commit-ci[bot] · pre-commit-ci[bot] · commit fa680f9db64e · 2024-10-22T12:43:17.000Z
for more information, see https://pre-commit.ci
diff --git a/strings/dna.py b/strings/dna.py
@@ -23,6 +23,7 @@ def dna(dna: str) -> str:
 
     return dna.translate(dna.maketrans("ATCG", "TAGC"))
 
+
 if __name__ == "__main__":
     import doctest
 
