code: def setUp(self):
      self._points = np.array(
          [[100.0, 0.0], [101.0, 2.0], [99.0, 2.0], [1.0, 1.0]]
      ).astype(np.float32)
  
      self._centers = np.array(
          [
              [100.0, 0.0],
              [99.0, 1.0],
              [50.0, 50.0],
              [0.0, 0.0],
              [1.0, 1.0],
          ]
      ).astype(np.float32)
  
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 1 for calling the NearestCentersTest obj's underlying member method code with example usage: obj.setUp() without return types