class_docstr: MSCOCO data set from http://cs.stanford.edu/people/karpathy/cvpr2015.pdf
code: def load_data(self):
      return self.load_zip(self.filename, self.size)
  
imports: from collections import Counter
  import numpy
  import os
  from neon import logger
  from neon.data.dataiterator import NervanaDataIterator
  from neon.data.datasets import Dataset
  from neon.util.compat import xrange
label_desc: Use image node_id 2 for calling the Coco obj's underlying member method code with example usage: obj.load_data() and returns: self