$VAR1 = bless( {
                 '_data' => [
                              {
                                'student_id' => '101',
                                'student_name' => 'John',
                                'stream' => 'Social_science',
                              },
                              {
                                'student_id' => '102',
                                'student_name' => 'Smith',
                                'stream' => 'History',
                              }
                            ],
                 '_place' => 0,
                 '_mapper' => [],
                 '_class' => 'School::Block::Student'
               }, 'Class::DBI::Iterator' );