def __init__(self, httpclient, session_id):
self.http = httpclient<EOL>self._target = None<EOL>v = self.http.get('<STR_LIT:/>').value<EOL>self.capabilities = v['<STR_LIT>']<EOL>self._sid = v['<STR_LIT>']<EOL>self.__scale = None<EOL>
Args:
    - target(string): for example, http://127.0.0.1:8100
    - session_id(string): wda session id