def _emit(self, **kwargs):
        '''
        Emit an OpenConfig object given a certain combination of
        fields mappeed in the config to the corresponding hierarchy.
        '''
        oc_dict = {}
        for mapping, result_key in kwargs['mapping']['variables'].items():
            result = kwargs[result_key]
            oc_dict = napalm_logs.utils.setval(mapping.format(**kwargs), result, oc_dict)
        for mapping, result in kwargs['mapping']['static'].items():
            oc_dict = napalm_logs.utils.setval(mapping.format(**kwargs), result, oc_dict)

        return oc_dict
Emit an OpenConfig object given a certain combination of
        fields mappeed in the config to the corresponding hierarchy.