( sharding_strategy: typing.Any = None backward_prefetch: typing.Any = None mixed_precision_policy: typing.Any = None auto_wrap_policy: Optional = None cpu_offload: typing.Any = None ignored_modules: Optional = None state_dict_type: typing.Any = None state_dict_config: typing.Any = None optim_state_dict_config: typing.Any = None limit_all_gathers: bool = True use_orig_params: bool = True param_init_fn: Optional = None sync_module_states: bool = True forward_prefetch: bool = False activation_checkpointing: bool = False )