code: def testReset(self):
      mean = metrics.Mean()
      self.assertAllEqual([2.0, 3.0], mean(tf.constant([2.0, 3.0])))
      self.assertAllEqual([3.0, 4.0], mean(tf.constant([4.0, 5.0])))
      mean.reset()
      self.assertAllEqual([7.0, 8.0], mean(tf.constant([7.0, 8.0])))
  
file_path: sonnet/sonnet/src/metrics_test.py
imports: from sonnet.src import metrics
  from sonnet.src import test_utils
  import tensorflow
label_desc: Use image node_id 3 for calling the MeanTest obj's underlying member method code with example usage: obj.testReset() without return types