<｜begin▁of▁sentence｜>### Instruction:
Given the Power grid graph which you can read from a GML file named power.gml, can you use the Louvain community detection algorithm in cdlib to perform community detection? And can you generate and print a JSON representation of the detected communities?
### Response:
import networkx as nx
from cdlib import algorithms

# Read the power grid graph from a GML file
G = nx.read_gml('power.gml')

# Apply the Louvain community detection algorithm
communities = algorithms.louvain(G, weight='weight', resolution=1.0)

# Generate a JSON representation of the detected communities
communities_json = communities.to_json()

print(communities_json)
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