content: """
  The :mod:`sklearn.neighbors` module implements the k-nearest neighbors
  algorithm.
  """
  
  from .ball_tree import BallTree
  from .kd_tree import KDTree
  from .dist_metrics import DistanceMetric
  from .graph import kneighbors_graph, radius_neighbors_graph
  from .unsupervised import NearestNeighbors
  from .classification import KNeighborsClassifier, RadiusNeighborsClassifier
  from .regression import KNeighborsRegressor, RadiusNeighborsRegressor
  from .nearest_centroid import NearestCentroid
  from .kde import KernelDensity
  from .approximate import LSHForest
  from .lof import LocalOutlierFactor
  
  __all__ = ['BallTree',
             'DistanceMetric',
             'KDTree',
             'KNeighborsClassifier',
             'KNeighborsRegressor',
             'NearestCentroid',
             'NearestNeighbors',
             'RadiusNeighborsClassifier',
             'RadiusNeighborsRegressor',
             'kneighbors_graph',
             'radius_neighbors_graph',
             'KernelDensity',
             'LSHForest',
             'LocalOutlierFactor']
  