<｜begin▁of▁sentence｜>### Instruction:
As a Real Estate Agent, imagine you have a community with 500 houses and you want to identify a subset of 50 houses to focus on for a special promotion. You have access to a tool called DiffusionTreeSampler, which uses a specialized process to identify the most influential houses within the community. Can you explain how to use DiffusionTreeSampler to select the subset of 50 houses?
### Response:
import networkx as nx
from littleballoffur import DiffusionTreeSampler

G = nx.gnp_random_graph(n=500, p=0.3)

sampler = DiffusionTreeSampler(50)

sampler_G = sampler.sample(G)

print(sampler_G.nodes())
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