def load(prefix, epoch, load_optimizer_states=False, **kwargs):
        """Create a model from previously saved checkpoint.

        Parameters
        ----------
        prefix : str
            path prefix of saved model files. You should have
            "prefix-symbol.json", "prefix-xxxx.params", and
            optionally "prefix-xxxx.states", where xxxx is the
            epoch number.
        epoch : int
            epoch to load.
        load_optimizer_states : bool
            whether to load optimizer states. Checkpoint needs
            to have been made with save_optimizer_states=True.
        data_names : list of str
            Default is `('data')` for a typical model used in image classification.
        label_names : list of str
            Default is `('softmax_label')` for a typical model used in image
            classification.
        logger : Logger
            Default is `logging`.
        context : Context or list of Context
            Default is `cpu()`.
        work_load_list : list of number
            Default `None`, indicating uniform workload.
        fixed_param_names: list of str
            Default `None`, indicating no network parameters are fixed.
        """
        sym, args, auxs = load_checkpoint(prefix, epoch)
        mod = Module(symbol=sym, **kwargs)
        mod._arg_params = args
        mod._aux_params = auxs
        mod.params_initialized = True
        if load_optimizer_states:
            mod._preload_opt_states = '%s-%04d.states'%(prefix, epoch)
        return mod
Create a model from previously saved checkpoint.

        Parameters
        ----------
        prefix : str
            path prefix of saved model files. You should have
            "prefix-symbol.json", "prefix-xxxx.params", and
            optionally "prefix-xxxx.states", where xxxx is the
            epoch number.
        epoch : int
            epoch to load.
        load_optimizer_states : bool
            whether to load optimizer states. Checkpoint needs
            to have been made with save_optimizer_states=True.
        data_names : list of str
            Default is `('data')` for a typical model used in image classification.
        label_names : list of str
            Default is `('softmax_label')` for a typical model used in image
            classification.
        logger : Logger
            Default is `logging`.
        context : Context or list of Context
            Default is `cpu()`.
        work_load_list : list of number
            Default `None`, indicating uniform workload.
        fixed_param_names: list of str
            Default `None`, indicating no network parameters are fixed.
        
faster_rcnn/core/module.py