<｜begin▁of▁sentence｜>### Instruction:
Given the Political blogs Graph which you can read from a gml file named polblogs.gml, can you use the async_fluid community detection algorithm in cdlib to perform community detection specifying 2 as the desired number of communities? Then, can you output the communities in JSON format?
### Response:
import networkx as nx
from cdlib import algorithms

# Create a graph
G = nx.read_gml('polblogs.gml')

# Apply the Async Fluid Communities detection algorithm with a desired number of communities
communities = algorithms.async_fluid(G, k=2)

# Convert the clustering to a JSON object
communities_json = communities.to_json()

print(communities_json)
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