Attempting to solve slow loads for `safetensors`.

def read_state_dict(checkpoint_file, print_global_state=False, map_location=None):

    _, extension = os.path.splitext(checkpoint_file)

    if extension.lower() == ".safetensors":

        pl_sd = safetensors.torch.load_file(checkpoint_file, device=map_location or shared.weight_load_location)

        device = map_location or shared.weight_load_location

        if device is None:

            device = "cuda:0" if torch.cuda.is_available() else "cpu"

        pl_sd = safetensors.torch.load_file(checkpoint_file, device=device)

    else:

        pl_sd = torch.load(checkpoint_file, map_location=map_location or shared.weight_load_location)