code: def test_SM_write_path_and_singleprint(self):
      self.assertEqual(metrics.GetWritePathAndSingleprint(), ("", ""))
      metrics.SetWritePathAndSingleprint(path="foo", singleprint="bar")
      self.assertEqual(
          metrics.GetWritePathAndSingleprint(), ("foo", "bar")
      )
  
imports: import os
  from tensorflow.core.framework import summary_pb2
  from tensorflow.core.framework import versions_pb2
  from tensorflow.core.protobuf import fingerprint_pb2
  from tensorflow.python.eager import test
  from tensorflow.python.saved_model.pywrap_saved_model import metrics
label_desc: Use image node_id 18 for calling the MetricsTest obj's underlying member method code with example usage: obj.test_SM_write_path_and_singleprint() without return types