of a plain tuple.   Returns 
~models.unet_1d.UNet1DOutput or tuple
  
If return_dict is True, an ~models.unet_1d.UNet1DOutput is returned, otherwise a tuple is
returned where the first element is the sample tensor.
  The UNet1DModel forward method.  UNet1DOutput  class diffusers.models.unets.unet_1d.UNet1DOutput  < source > ( sample: FloatTensor  )   Parameters   sample (torch.FloatTensor of shape (batch_size, num_channels, sample_size)) —
The 