<｜begin▁of▁sentence｜>### Instruction:
Given the Astrophysics collaborations Graph which you can read from a gml file named astro-ph.gml, can you use threshold clustering community detection algorithm in cdlib with the mean function as a threshold to perform community detection? And can you convert the result to a JSON format for inspection?
### Response:
import networkx as nx
from cdlib import algorithms
import numpy as np

# Create a graph
G = nx.read_gml('astro-ph.gml')

# Apply the threshold clustering community detection algorithm with the mean function as threshold
communities = algorithms.threshold_clustering(G, threshold_function=np.mean)

# Now, let's convert the community structure to a JSON object to inspect it
communities_json = communities.to_json()

print(communities_json)
<|EOT|>
