code: def testNearest1(self):
      with self.cached_session():
          [indices, distances] = clustering_ops.nearest_neighbors(
              self._points, self._centers, 1
          )
          self.assertAllClose(indices, [[0], [0], [1], [4]])
          self.assertAllClose(distances, [[0.0], [5.0], [1.0], [0.0]])
  
imports: import numpy
  from tensorflow.python.framework import test_util
  from tensorflow.python.ops import clustering_ops
  from tensorflow.python.platform import test
label_desc: Use image node_id 2 for calling the NearestCentersTest obj's underlying member method code with example usage: obj.testNearest1() without return types