tep (int) —
The current discrete timestep in the diffusion chain.   sample (torch.FloatTensor) —
A current instance of a sample created by the diffusion process.   Returns 
torch.FloatTensor
  
The converted model output.
  Convert the model output to the corresponding type the UniPC algorithm needs.  multistep_uni_c_bh_update  < source > ( this_model_output: FloatTensor *args last_sample: FloatTensor = None this_sample: FloatTensor = None orde