I have this code, and I am trying to make some methods unavailable under certain conditions. In Swift, I have seen methods appear grayed out with a red exclamation mark, indicating that they cannot be used in a specific instance. This might have been due to some experimental code, and learning swift.

I have this code, and I am trying to make some methods unavailable under certain conditions. In Swift, I have seen methods appear grayed out with a red exclamation mark, indicating that they cannot be used in a specific instance (or maybe that that thing is going to be deprecated in the future). This might have been due to some experimental code, and learning swift.