<｜begin▁of▁sentence｜>### Instruction:
Given a graph which you can read from network.gml, can you use all_minimal_st_separators function in igraph to find and print all the minimal s-t separators, where 's' and 't' represent specific vertices in the graph?
### Response:
from igraph import Graph

# Load a graph (modify the filename as needed)
g = Graph.Read('network.gml')

# Find all minimal s-t separators
s = 1 # Example source vertex index
t = 5 # Example target vertex index
separators = g.all_minimal_st_separators(s, t)

# Print all minimal s-t separators
for sep in separators:
    print(sep)
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