How to use the TRX at the gym?

Excuse me, I'm a bit confused about how to properly utilize the TRX at the gym. Could you please explain the basic steps to me? I've seen people using it and it looks quite challenging, but I'm not quite sure where to start. Could you guide me through the setup process? Also, I'd like to know what kind of exercises are suitable for beginners with the TRX. Are there any safety tips I should be aware of while using it? I'd really appreciate it if you could provide some insight on how to make the most out of this equipment and avoid any potential injuries.