<｜begin▁of▁sentence｜>### Instruction:
As a space psychologist studying the psychological factors and challenges associated with long-duration space missions, astronaut selection, and space habitat design, you have been tasked with analyzing the social network among a group of astronauts in a space station. You possess information about the connections among the four crew members, forming a closed-loop network representing their interactions. How would you utilize the igraph library to determine the isomorphism class of this social network and gain insights into the crew's social dynamics?
### Response:
import igraph as ig

# Define a simple graph
g = ig.Graph(edges=[(0, 1), (1, 2), (2, 3), (3, 0)])

# Get the isomorphism class of the graph
iso_class = g.isoclass()

# Print the isomorphism class
print(f'The isomorphism class of the graph is: {iso_class}')
<|EOT|>
