<｜begin▁of▁sentence｜>### Instruction:
Given a Tree graph generated with 7 nodes and each node having 2 children, can you set the background color of the plot to 'lightblue' using the background attribute of CairoPlot in igraph before saving it as 'tree_plot.png'?
### Response:
from igraph import Graph, plot
from igraph.drawing import CairoPlot

g = Graph.Tree(7, 2)  # Generate a sample graph
cplot = CairoPlot(g, 'tree_plot.png', bbox=(300, 300), background='lightblue')
plot(g, target=cplot)
<|EOT|>
