Merge pull request #184 from decargroup/bugfix/183-type-conversion-er…

…ror-in-randombinningkernelapprox

Fix int datatype

pykoop/kernel_approximation.py

@@ -479,6 +479,6 @@ def _hash_samples(self, X: np.ndarray) -> np.ndarray:
                 hash(tuple(coords[sample, :, component].astype(int)))
                 for component in range(coords.shape[2])
             ] for sample in range(coords.shape[0])],
-            dtype=int,
+            dtype=np.int64,
         )
         return coords_hashed