code: def test_basic_retrieve_collected_errors_empty(self):
      errors = metrics_wrapper.retrieve_collected_errors()
      self.assertEmpty(errors)
  
file_path: tensorflow/tensorflow/lite/python/metrics/wrapper/metrics_wrapper_test.py
imports: import tensorflow
  from tensorflow.lite.python import lite
  from tensorflow.lite.python.convert import ConverterError
  from tensorflow.lite.python.metrics.wrapper import metrics_wrapper
  from tensorflow.python.framework import test_util
  from tensorflow.python.platform import test
label_desc: Use image node_id 1 for calling the MetricsWrapperTest obj's underlying member method code with example usage: obj.test_basic_retrieve_collected_errors_empty() without return types