<｜begin▁of▁sentence｜>### Instruction:
As a traffic engineer, you are working on optimizing traffic flow and safety within a city. You have collected various data points using a sophisticated traffic monitoring system, which has generated a network representation of the city's transportation system in a file called "network.gml". Using networkx, you want to extract a summary of this network graph to better understand its structure. You would like to know how to use the "summary" function in networkx to display a summary of the graph in the console.
### Response:
from igraph import Graph
import sys

# Load a graph from a file
g = Graph.Read_GML('network.gml')

# Print a summary of the graph to standard output
Graph.summary(g, stream=sys.stdout)
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