code: def test_num_vec_classes(self):
      for num_vec_classes in [5, 100, 1000, 4000]:
          self.check_over_configs(num_vec_classes=num_vec_classes)
  
file_path: diffusers/tests/schedulers/test_scheduler_vq_diffusion.py
imports: import torch
  import torch.nn.functional
  from diffusers import VQDiffusionScheduler
  from .test_schedulers import SchedulerCommonTest
label_desc: Use image node_id 6 for calling the VQDiffusionSchedulerTest obj's underlying member method code with example usage: obj.test_num_vec_classes() without return types