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

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

Author: pre-commit-ci[bot]

machine_learning/approx_nearest_neighbors.py

@@ -3,7 +3,7 @@
 https://en.wikipedia.org/wiki/Nearest_neighbor_search#Approximate_nearest_neighbor
 
 ANN search finds "close enough" vectors instead of the exact nearest neighbor,
-which makes it much faster for large datasets.  
+which makes it much faster for large datasets.
 This implementation uses a simple **random projection hashing** method.
 
 Steps:
@@ -103,4 +103,5 @@ def query(self, q: np.ndarray) -> list[list[list[float] | float]]:
 
 if __name__ == "__main__":
     import doctest
+
     doctest.testmod()