<｜begin▁of▁sentence｜>### Instruction:
Can you create a Cairo-based plot for a given graph `g` and set the drawing area to occupy a 400x400 pixel space?
### Response:
from igraph import Plot
from igraph.drawing import BoundingBox

# Assuming you have a graph `g`
plot = Plot("graph.png", bbox=(0, 0, 400, 400))
plot.add(g)
plot.redraw()
# Save the plot to a file
plot.save()
<|EOT|>
