For example, to train in the bf16 format:  
```bash
accelerate launch train_dreambooth.py \
--mixed_precision="bf16"
```  
Some basic and important parameters to know and specify are:  
- `--pretrained_model_name_or_path`: the name of the model on the Hub or a local path to the pretrained model
- `--instance_data_dir`: path to a folder containing the training dataset (example images)
- `--instance_prompt`: the text prompt that contains the special word for the example images