<｜begin▁of▁sentence｜>### Instruction:
As a virtual reality designer creating a VR simulation for employee training, you need to manage the connections between different modules within the training environment. Imagine you have a network of interconnected modules representing different training topics, and you use NetworkX as the tool to represent these connections. Now, let's say that you have established an edge between the modules representing "Basic Skills" and "Advanced Skills" to indicate the prerequisite relationship, and you need to track the state of this connection to ensure the training progression follows the correct sequence.

In this context, you need to be able to determine whether the edge collection, representing the connections between different training modules, is stale. Using NetworkX API, you would want to check the status of the edge collection to ensure that when you remove a specific connection, such as the one between "Basic Skills" and "Advanced Skills," the edge collection is updated accordingly. This involves checking the stale status of the edge collection to maintain the accuracy of the training sequence in the VR simulation.
### Response:
import networkx as nx

# Create a NetworkX graph
G = nx.DiGraph()

# Add some edges
G.add_edge(1, 2)
G.add_edge(2, 3)

# Remove an edge and check if the edge collection is stale
G.remove_edge(1, 2)
is_stale = G.edges.stale

print('Is the edge collection stale?', is_stale)
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