code: def test_merge_removed(self):
      with self.assertRaises(AttributeError):
          d = device_spec.DeviceSpecV2()
          d.merge_from(
              device_spec.DeviceSpecV2.from_string("/task:1/cpu:0")
          )
  
file_path: tensorflow/tensorflow/python/framework/device_spec_test.py
imports: from absl.testing import parameterized
  from tensorflow.python.framework import device_spec
  from tensorflow.python.framework import test_util
  from tensorflow.python.platform import googletest
label_desc: Use image node_id 9 for calling the DeviceSpecTest obj's underlying member method code with example usage: obj.test_merge_removed() without return types