Error when trying to run Download pre-trained models

[patefonas]

Output:

Executing using VQGAN+CLIP method
Using device: cuda:0
Using text prompt: ['Happy flowers in a sunlit field']
Using image prompts: ['/content/test.jpg']
Using seed: 5476245293527641887
---------------------------------------------------------------------------
NameError                                 Traceback (most recent call last)
[<ipython-input-41-541d444115c2>](https://localhost:8080/#) in <module>()
     77 print('Using seed:', seed)
     78 
---> 79 model = load_vqgan_model(args.vqgan_config, args.vqgan_checkpoint).to(device)
     80 perceptor = clip.load(args.clip_model, jit=False)[0].eval().requires_grad_(False).to(device)
     81 

NameError: name 'load_vqgan_model' is not defined