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

for more information, see https://pre-commit.ci

Author: pre-commit-ci[bot]

hashes/joaat.py

@@ -5,6 +5,7 @@
 source: https://en.wikipedia.org/wiki/Jenkins_hash_function
 """
 
+
 def joaat(key: str) -> int:
     """
     Calculate Jenkins One-at-a-Time hash for a key.
@@ -31,6 +32,8 @@ def joaat(key: str) -> int:
 
     return hash_value
 
+
 if __name__ == "__main__":
     import doctest
+
     doctest.testmod()