code: def test_ChangeVideoSpeed(self):
      self.evaluate_class(
          vidaugs.ChangeVideoSpeed(factor=2.0),
          fname="change_video_speed",
      )
  
imports: import json
  import unittest
  from augly import video
  from augly.tests.base_configs import VideoAugConfig
  from augly.tests.video_tests.base_unit_test import BaseVideoUnitTest
  from augly.utils import VIDEO_METADATA_PATH
label_desc: Use image node_id 7 for calling the TransformsVideoUnitTest obj's underlying member method code with example usage: obj.test_ChangeVideoSpeed() without return types