def __init__(self, biz_model=None):
    self._biz_model = biz_model
    self._biz_content = None
    self._version = '1.0'
    self._terminal_type = None
    self._terminal_info = None
    self._prod_code = None
    self._notify_url = None
    self._return_url = None
    self._udf_params = None
    self._need_encrypt = False
def __init__(self, biz_model=None):
    self._biz_model = biz_model
    self._biz_content = None
    self._version = '1.0'
    self._terminal_type = None
    self._terminal_info = None
    self._prod_code = None
    self._notify_url = None
    self._return_url = None
    self._udf_params = None
    self._need_encrypt = False