code: def __len__(self):
      return len(self.graph)
  
imports: import pprint
  from collections import OrderedDict, namedtuple
  import six
  import numpy
  import scipy.sparse
  from six.moves.urllib.parse import urlparse
  from pagerank import pagerank
label_desc: Use image node_id 11 for calling the WebPageGraph obj's underlying member method code with example usage: obj.__len__() and returns: len