<｜begin▁of▁sentence｜>### Instruction:
Given an undirected lattice with dimensions 3x3 where vertices are connected to their immediate neighbors (nei=1), can you generate this lattice graph using igraph and then plot it?
### Response:
from igraph import Graph

# Create a 2D lattice with specified dimensions
lattice_graph = Graph.Lattice(dim=[3, 3], nei=1, directed=False, mutual=True, circular=False)

# Plot the lattice graph if desired
igraph.plot(lattice_graph)
<|EOT|>
