code: def test_whether_changed(self):
      # test whether the sample changed or not
      trans = sm_numword.transform(sample1)
      self.assertTrue(
          sample1.sentence1.field_value
          != trans[0].sentence1.field_value
          or sample1.sentence2.field_value
          != trans[0].sentence2.field_value
      )
  
imports: import unittest
  from textflint.input.component.sample.sm_sample import SMSample
  from textflint.generation.transformation.SM import SwapNum
label_desc: Use image node_id 1 for calling the TestSwapNum obj's underlying member method code with example usage: obj.test_whether_changed() without return types