code: def test_delete(self):
      tokens = ["Zoology", "roku123456"]
      aug = RandomCharAug(action="delete", min_char=1)
      for t in tokens:
          augmented_data = aug.augment(t)
          augmented_token = augmented_data[0]
          self.assertNotEqual(t, augmented_token)
          self.assertLess(len(augmented_token), len(t))
  
      self.assertTrue(len(tokens) > 0)
  
file_path: nlpaug/test/augmenter/char/test_random_char.py
imports: import unittest
  from nlpaug.augmenter.char.random import RandomCharAug
label_desc: Use image node_id 6 for calling the TestRandomCharReplaceAug obj's underlying member method code with example usage: obj.test_delete() without return types