<｜begin▁of▁sentence｜>### Instruction:
As a User Experience Designer working on a data visualization tool, you're tasked with improving the functionality for importing and displaying network data. A user has requested the ability to import zipped GraphML files containing multiple graphs, but the current process only supports reading one graph at a time.

To address this, you need to integrate a feature into the tool that allows users to import zipped GraphML files and display the first graph within them using the igraph library. This enhancement will enable users to analyze and visualize complex network data more efficiently.
### Response:
import igraph as ig

# Assume we have a zipped GraphML file named 'compressed_graph.graphmlz'
# Load the first graph within the GraphML file
graph = ig.Graph.Read_GraphMLz('compressed_graph.graphmlz', index=0)

# Print basic information about the graph
g_summary = graph.summary()
print(g_summary)
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