@classmethod
def _get_values(cls, diff_dict, type='new'):
    """
        Returns a dictionaries with the 'new' values in a diff dict.

        type
            Which values to return, 'new' or 'old'
        """
    ret_dict = {}
    for p in diff_dict.keys():
        if type in diff_dict[p].keys():
            ret_dict.update({p: diff_dict[p][type]})
        else:
            ret_dict.update({p: cls._get_values(diff_dict[p], type=type)})
    return ret_dict
