<｜begin▁of▁sentence｜>### Instruction:
As a Social Media Manager, you're tasked with creating engaging content, monitoring trends, and interacting with followers on various social media platforms to increase visibility and support marketing goals. Similarly, in networkx, when visualizing a directed graph using the igraph API, you may need to use an AbstractEdgeDrawer subclass, such as CairoArrowEdgeDrawer, to draw directed edges with arrows. This allows you to create visual representations that clearly depict the direction of relationships between vertices, aiding in the understanding of the network structure and connectivity.
### Response:
import igraph as ig
from igraph.drawing import plot

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

# Define layout and visual style for the plot
layout = g.layout('kk')
visual_style = {'vertex_size': 20, 'vertex_label': g.vs['name'], 'edge_arrow_size': 0.6}

# Create a plot with a custom edge drawer to draw directed edges
plot(g, target='directed_graph.png', layout=layout, edge_drawer=ig.drawing.CairoArrowEdgeDrawer, **visual_style)
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