<｜begin▁of▁sentence｜>### Instruction:
As the operations manager for a transportation company, you need to ensure the efficiency and productivity of your fleet operations. You have been provided with a network graph representing the routes between different locations, and you also have a membership list defining the clusters for each location. You are looking to use the Cover.Cover.sizes function in the igraph API to determine the sizes of the clusters, which will help you in planning and organizing operational processes for optimal utilization of resources and personnel.
### Response:
from igraph import Graph

# Assuming 'membership' is a list defining the cluster each vertex belongs to
g = Graph(edges=[(0,1), (1,2), (2,3), (3,0), (0,2), (1,3)])
cover = g.clusters().as_cover()

# Get the sizes of all clusters
sizes = cover.sizes()

print('Sizes of all clusters:', sizes)
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