<｜begin▁of▁sentence｜>### Instruction:
Given the Power Grid graph which you can read from a GML file named power.gml, can you use the IPCA function in cdlib to perform community detection? Can you output the results in a JSON format?
### Response:
import networkx as nx
from cdlib import algorithms

# Read the Power Grid structure
G = nx.read_gml('power.gml')

# Run IPCA community detection
coms = algorithms.ipca(G)

# Convert result to JSON
coms_json = coms.to_json()

print(coms_json)
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