lens – Can “extensions” be put on a Canonet QL17?

I’m about to get into the world of film cameras and have decided on buying a Canon Canonet QL17. However, it has a fixed lens and a large part of my photography involves wide-angle and telephoto lenses, which can’t just be attached onto it. Are there extensions/attachments? that I can buy for this camera that will allow me to use these lenses?