text.py 文件源码

def _get_twilio_client(cls):
        """
        A singleton method for getting a twilio rest client.

        Returns:
            TwilioRestClient: The twilio client we'll use for sending text
            messages.
        """
        if not cls.twilio_client:
            account_sid = os.environ["TWILIO_ACCOUNT_SID"]
            auth_token = os.environ["TWILIO_AUTH_TOKEN"]
            cls.twilio_client = TwilioRestClient(account_sid, auth_token)

        return cls.twilio_client