code: def testSavpGAN(self):
      hparams = savp_params.next_frame_savp()
      hparams.use_gan = True
      hparams.use_vae = False
      self.TestVideoModel(7, 5, hparams, savp.NextFrameSAVP, 1)
  
      hparams.gan_optimization = "sequential"
      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 2 for calling the NextFrameTest obj's underlying member method code with example usage: obj.testSavpGAN() without return types