<｜begin▁of▁sentence｜>### Instruction:
Given a complete graph where each edge's weight is 1, can you approximate a solution of the traveling salesman problem using the Christofides algorithm provided by the NetworkX library?
### Response:
import networkx as nx
from networkx.algorithms.approximation.traveling_salesman import christofides

# Creating a complete graph
G = nx.complete_graph(5)

# Adding weights to each edge
for (u, v) in G.edges():
    G[u][v]['weight'] = 1

# Approximating a solution to the traveling salesman problem
tour = christofides(G, 'weight')

print('Approximate solution of the traveling salesman problem:', tour)
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