code: def testInvalidVAEGANCombinations(self):
      hparams = savp_params.next_frame_savp()
      hparams.use_gan = False
      hparams.use_vae = False
      self.assertRaises(
          ValueError,
          self.TestVideoModel,
          7,
          5,
          hparams,
          savp.NextFrameSAVP,
          1,
      )
  
file_path: tensor2tensor/tensor2tensor/models/video/savp_test.py
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  from tensor2tensor.models.video import savp
  from tensor2tensor.models.video import savp_params
  from tensor2tensor.models.video import tests_utils
  import tensorflow.compat.v1
label_desc: Use image node_id 4 for calling the NextFrameTest obj's underlying member method code with example usage: obj.testInvalidVAEGANCombinations() without return types