code: def testGetEntriesNoFiles(self):
      features, num_examples = self.fs._GetEntries(
          ["test"], 10, lambda unused_path: []
      )
      self.assertEqual(0, num_examples)
      self.assertEqual({}, features)
  
imports: from facets_overview.feature_statistics_generator import FeatureStatisticsGenerator
  import numpy
  import tensorflow
  from tensorflow.python.platform import googletest
label_desc: Use image node_id 19 for calling the FeatureStatisticsGeneratorTest obj's underlying member method code with example usage: obj.testGetEntriesNoFiles() without return types