<｜begin▁of▁sentence｜>### Instruction:
Given a graph which you can read from 'graph25.gml', how can you get the list of edge attribute names using igraph's Edge.attribute_names function?
### Response:
import igraph as ig

# Assuming 'graph25.gml' contains a graph with edge attributes
graph = ig.read('graph25.gml')

# Retrieve the list of edge attribute names
attribute_names = graph.es.attribute_names()

# Print the edge attribute names
print(attribute_names)
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