objc_json.m

#import <Foundation/Foundation.h>

int main(int argc, char *argv[]) {
	@autoreleasepool {
		NSDictionary *dic = @{
		  @"array": @[
		    @(1),
		    @(2),
		    @(3),
		  ],
		  @"boolean": @YES,
		  @"null": [NSNull null],
		  @"number": @(123),
		  @"object": @{
		    @"a": @"b",
		    @"c": @"d",
		    @"e": @"f"
		  },
		  @"string": @"Hello World"
		};
	}
}