<｜begin▁of▁sentence｜>### Instruction:
As a software developer working on a mapping application, you've been tasked with updating the coordinates of a bounding box displayed on the map. The current top-left coordinate of the bounding box is (20, 10), and the bottom-right coordinate is (50, 30). You need to modify the x-coordinate of the left side of the bounding box to 15 and provide the new updated bounding box coordinates for the map display. You can utilize networkx, a Python library for creating, manipulating, and analyzing the structure, dynamics, and functions of complex networks, to handle this task efficiently.
### Response:
import igraph as ig

# Create a rectangle instance
rectangle = ig.Rectangle(20, 10, 50, 30)

# Set the X coordinate of the left side
current_left = rectangle.left
new_left = 15  # New X coordinate for the left side
rectangle.left = new_left

# Let's print the updated rectangle's bounding box
print('Updated left coordinate:', rectangle.left)
print('Rectangle bounding box:', rectangle.top, rectangle.left, rectangle.bottom, rectangle.right)
<|EOT|>
