l_output_list (List[torch.FloatTensor]) —
The direct outputs from learned diffusion model at current and latter timesteps.   sample (torch.FloatTensor) —
A current instance of a sample created by the diffusion process.   Returns 
torch.FloatTensor
  
The sample tensor at the previous timestep.
  One step for the second-order multistep DPMSolver.  multistep_dpm_solver_third_order_update  < source > ( model_output_list: List *args sample: FloatTe