<｜begin▁of▁sentence｜>### Instruction:
Given a graph which you can read from network.gml, can you list all the vertex attributes present in the graph?
### Response:
import igraph as ig

# Load a graph
graph = ig.read('network.gml')

# Get the list of vertex attributes
vertex_attrs = graph.vertex_attributes()

# Print the vertex attributes
print('Vertex attributes:', vertex_attrs)
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