@staticmethod
def _set_class_attribute(cls, key, value):
    """
        Formats the attribute name to remove whitespace with _
        :param key: attribute name
        :param value: attribute value
        """
    k = key.replace(' ', '_').lower().strip()
    setattr(cls, k, value)
    if k == 'system_id':
        setattr(cls, 'id', value)
        cls._attribute_map['id'] = 'id'
    cls._attribute_map[k] = key
