<｜begin▁of▁sentence｜>### Instruction:
As a tour operator, you may work with large datasets to plan and organize travel itineraries and packages for guided tours or excursions. For instance, you might need to analyze the group dynamics and preferences of your potential travelers based on social network data. Using the 'clique_number' function in the networkx library, you can determine the size of the largest clique within the social network of potential travelers, helping you understand the subgroups that are closely connected and may prefer to travel together.
### Response:
from igraph import Graph

# Assume we have a Graph object 'g'
# Calculate the clique number of the graph (size of largest clique)
clique_num = g.clique_number()

# Output the result
print('The clique number of the graph is:', clique_num)
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