<｜begin▁of▁sentence｜>### Instruction:
Given a path graph with 4 nodes, can you use NetworkX to find the dictionary of predecessors in a depth-first search from the source node 0, with a maximum search depth of 2?
### Response:
import networkx as nx

# Create a graph
G = nx.path_graph(4)

# Get predecessors in depth-first-search from source
predecessors = nx.dfs_predecessors(G, source=0, depth_limit=2)

print(predecessors)
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