id cap1 = @"hello world!";
id cap2 = @[@"arr1", @"arr2"];
id obj = @"not captured";
__weak id obj2 = @"not captured 2";
__block int i = 3;
__block id block_id = @"block id";

void (^blk)(void) = ^{
    id b1 = cap1;
    id b2 = cap2;
    id b3 = obj2;
    i = 4;
    block_id = @"s";
};
[BlockInspector inspectBlock:blk];