@property
    def _lookup_friendships(self):
        return bind_api(
            api=self,
            path='/friendships/lookup.json',
            payload_type='relationship', payload_list=True,
            allowed_param=['user_id', 'screen_name'],
            require_auth=True
        )
:reference: https://dev.twitter.com/rest/reference/get/friendships/lookup
dataset/ETHPy150Open tweepy/tweepy/tweepy/api.py/API._lookup_friendships