def __init__(self, api_key, shared_secret, httplib2_inst=None):
        super(TwoLegged, self).__init__(api_key, shared_secret, httplib2_inst)
        self.endpoint = PRIVATE_ENDPOINT
        self.hmac_sha1_signature = oauth.SignatureMethod_HMAC_SHA1()
        self.plaintext_signature = oauth.SignatureMethod_PLAINTEXT()
Override init to ensure required args
dataset/ETHPy150Open project-fondue/python-yql/yql/__init__.py/TwoLegged.__init__