<｜begin▁of▁sentence｜>### Instruction:
Given a graph which you can load from 'network.gml', how can you use the Vertex.Vertex.all_edges method in igraph to retrieve all the edges incident to a specified vertex with id 0, regardless of their direction?
### Response:
import igraph as ig

# Load graph from file
graph = ig.read('network.gml')

# Select a vertex
vertex_id = 0
vertex = graph.vs[vertex_id]

# Get all edges incident on the selected vertex, regardless of direction
all_edges = vertex.all_edges()

# Print all edges
print('All edges incident on vertex {}:'.format(vertex_id))
for e in all_edges:
    print(e.tuple)
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