@property<EOL><INDENT>def subscription_id(self):<DEDENT>
return self._subscription_id<EOL>
Gets the subscription_id of this RenewTokenResponse.
The ID of the merchant [subscription](https://docs.connect.squareup.com/api/connect/v1/#navsection-subscriptionmanagement) associated with the authorization. Only present if the merchant signed up for a subscription during authorization.

:return: The subscription_id of this RenewTokenResponse.
:rtype: str