code: def test_eta(self):
      for t, eta in zip([1, 10, 49], [0.0, 0.5, 1.0]):
          self.check_over_forward(time_step=t, eta=eta)
  
imports: import torch
  from diffusers import DDIMScheduler
  from .test_schedulers import SchedulerCommonTest
label_desc: Use image node_id 14 for calling the DDIMSchedulerTest obj's underlying member method code with example usage: obj.test_eta() without return types