I\'m receiving a warning
PerformSelector may cause a leak because its selector is unknown
In the code:
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This is a warning generated by the compiler because -Wundeclared-selector was used while compiling and automatic reference counting (ARC) is enabled. This can be, in general, safely ignored, as it's obvious that the selector in the variable named "selector" is unknown at compile time, as it will have its value assigned at runtime.