scikit-learn
diff --git a/‎sklearn/neighbors/__init__.py
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+2-1Lines changed: 2 additions & 1 deletion b/‎sklearn/neighbors/__init__.py
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+2-1Lines changed: 2 additions & 1 deletion
diff --git a/‎sklearn/neighbors/_kd_tree.pyx
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+5-1Lines changed: 5 additions & 1 deletion b/‎sklearn/neighbors/_kd_tree.pyx
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+5-1Lines changed: 5 additions & 1 deletion
diff --git a/‎sklearn/neighbors/_subsampled.py
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-193Lines changed: 0 additions & 193 deletions b/‎sklearn/neighbors/_subsampled.py
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-193Lines changed: 0 additions & 193 deletions
diff --git a/‎sklearn/neighbors/setup.py
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+7Lines changed: 7 additions & 0 deletions b/‎sklearn/neighbors/setup.py
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+7Lines changed: 7 additions & 0 deletions
@@ -4,7 +4,7 @@
 """
 
 from ._ball_tree import BallTree
-from ._kd_tree import KDTree
+from ._kd_tree import KDTree, Test
 from ._dist_metrics import DistanceMetric
 from ._graph import kneighbors_graph, radius_neighbors_graph
 from ._graph import KNeighborsTransformer, RadiusNeighborsTransformer
@@ -21,6 +21,7 @@
 __all__ = ['BallTree',
            'DistanceMetric',
            'KDTree',
+           'Test',
            'KNeighborsClassifier',
            'KNeighborsRegressor',
            'KNeighborsTransformer',
 
@@ -7,7 +7,7 @@
 # written for the scikit-learn project
 # License: BSD
 
-__all__ = ['KDTree']
+__all__ = ['KDTree', 'Test']
 
 DOC_DICT = {'BinaryTree': 'KDTree', 'binary_tree': 'kd_tree'}
 
@@ -22,6 +22,10 @@ cdef class KDTree(BinaryTree):
     __doc__ = CLASS_DOC.format(**DOC_DICT)
     pass
 
+class Test:
+    def __init__(self):
+        pass
+
 
 #----------------------------------------------------------------------
 # The functions below specialized the Binary Tree as a KD Tree
 
@@ -31,11 +31,18 @@ def configuration(parent_package='', top_path=None):
                          sources=['_typedefs.pyx'],
                          include_dirs=[numpy.get_include()],
                          libraries=libraries)
+    
     config.add_extension("_quad_tree",
                          sources=["_quad_tree.pyx"],
                          include_dirs=[numpy.get_include()],
                          libraries=libraries)
 
+    config.add_extension('_subsampled',
+                         sources=['_subsampled.pyx'],
+                         include_dirs=[numpy.get_include()],
+                         libraries=libraries,
+                         language="c++")
+
     config.add_subpackage('tests')
 
     return config