<｜begin▁of▁sentence｜>### Instruction:
As the courtroom bailiff, my duty is to uphold order and safety within the courtroom, ensuring that proceedings run smoothly and without disruption. In the case before us, we have a vital document labeled "graph42.gml" that holds crucial information about a network. Using the specialized tool provided by our esteemed network analysis department, known as NetworkX, I must utilize the 'max' function to determine the highest degree present in the graph. However, recognizing the possibility of encountering an empty graph, I must be prepared to handle such a scenario by setting a default return value of 0. This ensures that even in the absence of data, we can proceed with our analysis effectively and efficiently.
### Response:
import networkx as nx

# Create a graph
g = nx.read_gml('graph42.gml')

# Use max to find the maximum degree
max_degree = max(dict(g.degree()).values(), default=0)

print(max_degree)
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