<｜begin▁of▁sentence｜>### Instruction:
Given a tree graph generated using the igraph module with 10 vertices where each non-leaf vertex has 2 children, how would you ensure that the graph drawer uses the suitable layout for plotting the graph if layout information is not explicitly provided? Use igraph's ensure_layout helper method implicitly via igraph's plotting interface.
### Response:
import igraph as ig

# Create a basic graph
g = ig.Graph.Tree(10, 2)

# Initialize a plot with the default drawer
plot = ig.plot(g, bbox=(300, 300))

# Internally ensure_layout will be called to get the default layout
layout = g.layout()
plot.redraw()

# Show the plot
plot.show()
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