<｜begin▁of▁sentence｜>### Instruction:
Given a complete graph of 5 vertices, can you use the betweenness function in igraph to calculate the betweenness centrality of each vertex?
### Response:
import igraph as ig

# Assuming we have already created a graph named 'g'
# Example usage to calculate betweenness of vertices
g = ig.Graph.Full(5)
vertex_betweenness = g.betweenness()
print('Vertex betweenness:', vertex_betweenness)
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