'Initialize the response data from JSON PBLite array.'

def __init__(self, json_string):

    pbl = json.loads(json_string)
    if (not isinstance(pbl, list)):
        raise ValueError(('Not    a    list:    ' + str(pbl)))
    pbl_len = len(pbl)
    self.user_email = (pbl[0] if (pbl_len > 0) else None)
    self.project_id = (pbl[1] if (pbl_len > 1) else None)
    self.access_token = (pbl[2] if (pbl_len > 2) else None)
    self.expires_in = (pbl[3] if (pbl_len > 3) else None)
