Torch model from a pretrained model configuration. The model is set in evaluation mode - model.eval() - by default, and dropout modules are deactivated. To
train the model, set it back in training mode with model.train(). To use private or gated models, log-in with
huggingface-cli login. You can also activate the special
“offline-mode” to use this method in a
firewalled environment.  Example:   Copied from diffusers import UNet2DConditionModel
