<｜begin▁of▁sentence｜>### Instruction:
Given a directed graph with 4 vertices and 3 edges, where edges have widths of 1, 2, and 3 respectively, how can you retrieve the width of each arrow using the 'get_arrow_widths' function in igraph?
### Response:
from igraph import Graph

# Create the graph with an arbitrary structure
g = Graph([(0, 1), (1, 2), (2, 3)], directed=True)

# Set arrow sizes for each edge
g.es['width'] = [1, 2, 3]

# Retrieve the arrow widths for the edges
arrow_widths = g.es.get_arrow_widths()

# Print the arrow widths
print(arrow_widths)
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