data returned is HASH(0x4e9574) 
data returned is HASH(0x4e9598) 
data returned is HASH(0x4e958c) 
data returned is HASH(0x4e961c) 
data returned is HASH(0x4e95b0) 
data returned is HASH(0x4e955c) 
data returned is HASH(0x4e94fc) 
data returned is HASH(0x4e9568) 
data returned is HASH(0x4e95e0) 
data returned is HASH(0x4e96d0) 
data returned is HASH(0x22d410) 
data returned is HASH(0x4e94e4) 
data returned is HASH(0x22d350) 
data returned is HASH(0x4e9574) 
data returned is HASH(0x4e9598) 
data returned is HASH(0x4e958c) 
contents of hash is $VAR1 = {
          '' => undef,
          'foo' => 'bar'
        };