For example, OpenVDB uses templates with user provided arguments at the very heart of its tree structure. Similar things happen in PCL and CGAL. They are templa

For example, OpenVDB uses templates with user provided arguments at the very heart of its tree structure. Similar things happen in PCL and CGAL. They are template-heavy libraries by design. OpenCV on the other hand seems to instantiate all possible variants of cv::Mat for their Python bindings. They don't such a big space of valid and useful template parameters and IIRC the specifics are abstracted away from the algorithms working on them.