This accepted answer from a different question already gives different ways to handle this. Yet I am somehow inclined not to give a persistent visual indication of swipe actions.
Mobile devices are hard pressed for real estate. So people tend use as much space as possible to show what is relevant. Having a persistent indicator of swipe actions will take a significant portion away from you. This will also create an less efficient and probably unbalanced UI.
The design of any app is not subject to change very frequently. So when users learn about the ways of swiping, they will not be needing those indicators. So effectively you are using a persistent indicator for something which will not be needed after a few runs of the app. This can be avoided.
On the mobile devices, as you mentioned in a comment, it is instinctive to try swipe actions for most part. However, we can not take this for granted. Which means having a initial tutorial on first run which explains the swipe gesture can be an option. Also, keeping that tutorial in settings/help so that user can quickly see it again is also a good option.
Already the leading platforms like Android provide certain ways to indicate there is a menu on the left side. This might be hamburger menu of the three lines to the left of the title. These are animated when the menu is opened. This way is less visually obstructive while still providing affordance to a regular mobile app user. While left swipe opens the settings or menu for an app is fairly common, same can not be said for right swipe actions. This can best depicted using tutorial. Bottomline is, I would be wary of using a persistent indicator for showing it is swipe enabled.
This is mostly applicable when there is something always available on the left or right side of the application. If you have a use case where the a conditionally you either have something on panes towards left and right then it would be a bad design choice. Then our former approach would reduce reliability of the system. In such cases you can have a overlay indicators which help in tapping and / or swiping for next pane. Optionally you can have a thumbnail preview of entire stack. Something very commonly seen on image galleries.