<｜begin▁of▁sentence｜>### Instruction:
Given an igraph Graph instance 'g', can you use MatplotlibDendrogramDrawer to draw a dendrogram of the graph's community structure obtained using the edge betweenness community detection method, with the dendrogram's root at the top?
### Response:
from igraph import Graph
from igraph.drawing import Plot
from igraph.drawing.matplotlib.dendrogram import MatplotlibDendrogramDrawer
import matplotlib.pyplot as plt

# Create an igraph Graph instance
# Assume we have a Graph instance 'g' already constructed

# Compute the dendrogram
dendrogram = g.community_edge_betweenness().as_clustering().dendrogram

# Create matplotlib figure and axes
fig, ax = plt.subplots()

# Create an instance of MatplotlibDendrogramDrawer
drawer = MatplotlibDendrogramDrawer(ax=ax)

# Draw the dendrogram on the Axes
drawer.draw(dendrogram, orientation='bt')

# Show the plot
plt.show()
<|EOT|>
