Finding the class with the most instance variables in your Objective-C runtime environment with Heliograph

Heliograph-MostInstancVariables.m

#import <OpinionatedC/OpinionatedC.h>
#import <Heliograph/Heliograph.h>

NSArray *classes = [HGClassMirror allClasses];

HGClassMirror *mostInstanceVariables = [classes max:^NSNumber *(HGClassMirror *each) {
    return @([[each instanceVariables] count]);
}];
NSLog(@"%@ has %lu instance Variables", mostInstanceVariables, (unsigned long)[[mostInstanceVariables instanceVariables] count]);

// => <HGClassMirror on UIKeyboardImpl> has 125 instance Variables