Added m and n as TypeVars to fix stubgen when using Eigen::MatrixXd.

Author: timohl

cpp/pybind/geometry/geometry.cpp

@@ -45,6 +45,9 @@ void pybind_geometry_classes_declarations(py::module &m) {
                std::shared_ptr<Geometry2D>, Geometry>
             geometry2d(m, "Geometry2D",
                        "The base geometry class for 2D geometries.");
+
+    m.attr("m") = py::module_::import("typing").attr("TypeVar")("m");
+    m.attr("n") = py::module_::import("typing").attr("TypeVar")("n");
 }
 void pybind_geometry_classes_definitions(py::module &m) {
     // open3d.geometry functions

cpp/pybind/pipelines/registration/feature.cpp

@@ -19,6 +19,8 @@ void pybind_feature_declarations(py::module &m_registration) {
     py::class_<Feature, std::shared_ptr<Feature>> feature(
             m_registration, "Feature",
             "Class to store featrues for registration.");
+    m_registration.attr("m") = py::module_::import("typing").attr("TypeVar")("m");
+    m_registration.attr("n") = py::module_::import("typing").attr("TypeVar")("n");
 }
 void pybind_feature_definitions(py::module &m_registration) {
     // open3d.registration.Feature