Create OpenCV LBPHFaceRecognizer

Cargo.toml: opencv = "0.61.3"

main.rs:

let recognizer = opencv::prelude::LBPHFaceRecognizer::create(1,8,8,8,123);

I get an error function or associated item not found in dyn opencv::prelude::LBPHFaceRecognizer What does this mean and how can I fix it?