(torch.FloatTensor) —
The input sample.   timestep (int, optional) —
The current timestep in the diffusion chain.   Returns 
torch.FloatTensor
  
A scaled input sample.
  Ensures interchangeability with schedulers that need to scale the denoising model input depending on the
current timestep.  set_begin_index  < source > ( begin_index: int = 0  )   Parameters   begin_index (int) —
The begin index for the scheduler.    Sets the begin index for t