<｜begin▁of▁sentence｜>### Instruction:
Given a directed graph defined by the edges {0: [3], 1: [2], 2: [3], 3: [0, 1]}, determine if this graph is Eulerian. An Eulerian graph is one in which there exists a closed walk that includes each edge of the graph exactly once. Note that an Eulerian graph must be connected, so it should not contain isolated vertices.
### Response:
import networkx as nx

# Create a directed graph
G = nx.DiGraph({0: [3], 1: [2], 2: [3], 3: [0, 1]})

# Check if the graph is Eulerian
is_eulerian = nx.is_eulerian(G)

# Print the result
print('The directed graph is Eulerian:', is_eulerian)
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