How check unreferenced headers in Objective-C?

In other IDEs on many popular platforms, developers have the ability to analyze unreferenced header files in source code (either visually or thru warnings), like below:

// sourcefile.c

#include <file1.h>
// file2.h is not referenced in this source code file, so the following line would be grayed out in a well known iDE
#include <file2.h>

Is this possible in Xcode?

How check unreferenced headers in Objective-C?
 
 
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