<｜begin▁of▁sentence｜>### Instruction:
Given a simple graph with vertices connected in a cycle, how can you initialize an AbstractCairoGraphDrawer in igraph to be ready for drawing on a Cairo surface?
### Response:
import igraph as ig
import cairo
from igraph.drawing import BoundingBox

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

# Create a Cairo surface to draw on
surface = cairo.ImageSurface(cairo.FORMAT_ARGB32, 400, 400)
ctx = cairo.Context(surface)

# Define the bounding box
bbox = BoundingBox(400, 400)

# Create an instance of AbstractCairoGraphDrawer
graph_drawer = ig.drawing.cairo.AbstractCairoGraphDrawer(ctx, bbox)

# Here you would proceed to draw the graph using the methods of the subclass,
# since AbstractCairoGraphDrawer does not implement drawing methods itself.
<|EOT|>
