MultiArray_ in the vigra C++ documentation.\n");      def("tensorDeterminant",         registerConverters(&pythonTensorDeterminant<float,0>),         (arg("volume"),arg("out")=python::object()),         "Likewise for a 0x0 tensor volume.\n");      def("tensorEigenvalues",         registerConverters(&pythonTensorEigenvalues<float,0>),         (arg("image"),arg("out")=python::object()),         "Calculate the 