celerator()
        >>> # Assume a model, optimizer, data_loader and scheduler are defined
        >>> model, optimizer, data_loader, scheduler = accelerator.prepare(model, optimizer, data_loader, scheduler)
        ```

        ```python
        >>> from accelerate import Accelerator

        >>> accelerator = Accelerator()
        >>> # Assume a model, optimizer, data_loader and scheduler are defined
        >>> device_placement = [True, True, False, False]
        >>> # Will place the first to items passed in automatically to the right device but not the last two.
        >>> model, optimizer, data_loader, scheduler = accelerator.prepare(
        ...     model, optimizer, data_loader, scheduler, device_placement=device_placement
        ... )
        ```
        Nc