<｜begin▁of▁sentence｜>### Instruction:
As an investigative assistant, I have access to a graph database containing crucial information about a network of individuals involved in fraudulent activities. The graph is stored in the file "graph_data.gml." I need to use the `pagerank` method provided by the `Vertex` class in igraph to determine the PageRank value of a specific suspect represented by vertex 3. This will aid in identifying the level of influence and importance of this individual within the fraudulent network.
### Response:
from igraph import Graph

g = Graph.Read_GML('graph_data.gml')
vertex_id = 3
pagerank_value = g.vs[vertex_id].pagerank()
print(f'PageRank of vertex {vertex_id}: {pagerank_value}')
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