code: def test_time_indices(self):
      for t in [0, 50, 99]:
          self.check_over_forward(time_step=t)
  
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 7 for calling the VQDiffusionSchedulerTest obj's underlying member method code with example usage: obj.test_time_indices() without return types