Final notes
If you would like to learn even more about the Objective-C Runtime, head to the documentation and look up the Objective-C Runtime Programming Guide and the Objective-C Runtime Reference.
Now that you have learned some of the magic, you probably want to try out some of these functions in your code.
Don’t do this.
Knowing that these functions exist helps draw back the curtain to understand what is going on under the hood of your programs. However, the runtime functions are primarily for use by Apple’s developers to support Apple’s APIs, and can be very unwieldy when used by us mortals.
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