Okay, I just searched HoloViews repo for image_url and it doesn’t exist. I suspect maybe there can be a new hv.ImageUrl() implementation to match this:
from bokeh.core.properties import value
from bokeh.plotting import figure, show
import numpy as np
url = "https://static.bokeh.org/logos/logo.png"
x = np.random.random(150) * 100
y = np.random.random(150) * 100
p = figure(match_aspect=True, toolbar_location=None, background_fill_color="#efefef")
# value is used here to prevent the string URL from being
# interpreted as a column name from the data source.