<｜begin▁of▁sentence｜>### Instruction:
As an information security analyst, you have been tasked with identifying potential security vulnerabilities in a company's network data. You are required to extract and analyze the 'weight' attribute of all edges from the graph stored in the 'network.gml' file. This information will be used to assess the strength of connections within the network and identify potential areas of concern for security measures. I would recommend using the 'get_attribute_values' method in networkx, a Python library for creating, analyzing, and visualizing complex networks, to extract the 'weight' attribute values from the graph. Finally, you will need to present the results as a JSON array for further analysis and action.
### Response:
from igraph import Graph
import json

g = ig.read('network.gml')
edge_attributes = g.es.get_attribute_values('weight')

print(json.dumps(edge_attributes))
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