<｜begin▁of▁sentence｜>### Instruction:
Given a graph with 5 vertices and edges set as [(0, 1), (0, 2), (1, 3), (3, 4)], can you calculate the convergence field size using the GraphBase.convergence_field_size function in igraph?
### Response:
from igraph import Graph

# Create a graph with some vertices
vertices = 5
edges = [(0, 1), (0, 2), (1, 3), (3, 4)]
g = Graph(vertices, edges)

# Get the convergence field size
convergence_size = g.convergence_field_size()

# Print the size of the convergence field
print('The convergence field size is:', convergence_size)
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