<｜begin▁of▁sentence｜>### Instruction:
Given a simple undirected graph stored in a NetworkX Graph object with edges [(0, 1), (1, 2), (2, 3)], and assuming each node has a 'pos' attribute that determines its X-coordinate in a horizontal layout with increasing X-coordinates, how would you create a rectangle representation in which the 'right' property of the rectangle is set to the X-coordinate of the rightmost node plus one?
### Response:
import networkx as nx

# Create a simple graph
g = nx.Graph()
# Add edges to the graph
edges = [(0, 1), (1, 2), (2, 3)]
g.add_edges_from(edges)
# Assign the x-coordinate of the rightmost node in the graph (assuming horizontal layout with increasing X-coordinates)
rightmost_x = max(nx.get_node_attributes(g, 'pos').values(), key=lambda x: x[0])[0] if nx.get_node_attributes(g, 'pos') else None
# Create a representation of a rectangle including the graph
rectangle = {'left': 0, 'right': rightmost_x, 'top': 1, 'bottom': 0}
# Set the X coordinate of the right side of the box
rectangle['right'] = rightmost_x + 1

# Print updated rectangle
print(rectangle)
<|EOT|>
