<｜begin▁of▁sentence｜>### Instruction:
As a medical researcher using network analysis, you might have a dataset in a file named "graph_file.gml" that contains information about connections between different biological entities such as genes or proteins. As part of your analysis, you want to calculate the radius of the graph to understand the overall connectivity and potential interactions among these entities. To accomplish this, you wish to utilize the radius function provided by the NetworkX library, which helps in determining the radius of a given graph.
### Response:
from igraph import Graph
import igraph as ig

g = ig.read('graph_file.gml')

# Calculate the radius of the graph
radius = g.radius()

print(f'The radius of the graph is: {radius}')
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