<｜begin▁of▁sentence｜>### Instruction:
As a truck driver, you are responsible for operating and driving trucks to transport goods over various routes. Sometimes, you may need to keep track of the delivery schedules and ensure the safety of the transportation services. In this scenario, you have been tasked with using a specific tool, let's say a GPS navigation system, to save the planned routes in a specific format. For instance, you need to use the "saveAsDot" function in the GPS navigation system to save the planned routes to a file named 'output_routes.dot'.
### Response:
import igraph as ig

# Create a simple graph
g = ig.Graph(edges=[(0, 1), (1, 2), (2, 3), (3, 0), (0, 2)])

# Write the graph to a file in DOT format
g.write_dot('output_graph.dot')
<|EOT|>
