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# fnss.topologies.datacenter.DatacenterTopology.number_of_nodes

`DatacenterTopology.``number_of_nodes`()

  Return the number of nodes in the graph.

  Returns: | nnodes : int The number of nodes in the graph.

  See also

  `order`, `__len__`

  Examples

      >>> G = nx.Graph()   # or DiGraph, MultiGraph, MultiDiGraph, etc
      >>> G.add_path([0,1,2])
      >>> len(G)
      3

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