Add the `.open_subscriptions` method.
Add the `.open_subscriptions` method.

WillianPaiva/1flow,WillianPaiva/1flow,WillianPaiva/1flow,1flow/1flow,WillianPaiva/1flow,WillianPaiva/1flow,1flow/1flow,1flow/1flow,1flow/1flow,1flow/1flow