code: def testConvertFieldsMismatch(self, field_values, error):
      fields = [
          extension_type_field.ExtensionTypeField("x", int),
          extension_type_field.ExtensionTypeField("y", float),
      ]
      with self.assertRaisesRegex(ValueError, error):
          extension_type_field.convert_fields(fields, field_values)
  
imports: import sys
  import typing
  from absl.testing import parameterized
  import numpy
  from tensorflow.python.framework import constant_op
  from tensorflow.python.framework import dtypes
  from tensorflow.python.framework import extension_type_field
  from tensorflow.python.framework import tensor
  from tensorflow.python.framework import tensor_shape
  from tensorflow.python.framework import test_util
  from tensorflow.python.ops.ragged import ragged_factory_ops
  from tensorflow.python.ops.ragged import ragged_tensor
  from tensorflow.python.platform import googletest
label_desc: Use image node_id 1 for calling the FieldValueConverterTest obj's underlying member method code with example usage: obj.testConvertFieldsMismatch(field_values, error) without return types