<｜begin▁of▁sentence｜>### Instruction:
Given a graph object in igraph with a small set of nodes and edges, can you save this graph to a zipped GraphML file using the highest level of compression?
### Response:
import igraph as ig

# Create a graph
g = ig.Graph([(0, 1), (1, 2), (2, 3), (3, 0)])

# Write the graph to a zipped GraphML file
g.write_graphmlz('my_graph.graphmlz', compresslevel=9)
<|EOT|>
