How to remove the title from yellowbrick ROCAUC

I am using yellowbrick to plot the AUCROC. I want to remove the title from the plot, to make it empty without the plot title.

model = classifier
visualizer = ROCAUC(model, encoder={0: 'class' , 1: 'class2'}
visualizer.fit(X_train, y_train)        
visualizer.score(X_test, y_test)       
visualizer.show()   

                

yellowbrick documentation How can I change the title of a Yellowbrick plot?

If I use single space in title=" " then I get plot without title.
It doesn't work with empty string title="".

Minimal working example

from yellowbrick.classifier import ROCAUC
from sklearn.linear_model import RidgeClassifier

# single space in title
visualizer = ROCAUC(RidgeClassifier(), title=" ")
visualizer.show()