How to use the brainspace.vtk_interface.base.call_vtk function in brainspace

def _handle_call(self, key, name, args):
        method = self.vtk_map[key][name.lower()]
        # obj = self.VTKObject
        # if method in self._override:
        #     obj = self
        if isinstance(method, dict):
            if isinstance(args, str) and args.lower() in method['options']:
                return call_vtk(self, method['options'][args.lower()])
            elif 'name' in method:
                return call_vtk(self, method['name'], args)
            else:
                raise AttributeError("Cannot find VTK name '%s'" % name)

        return call_vtk(self, method, args)

def _handle_call(self, key, name, args):
        method = self.vtk_map[key][name.lower()]
        # obj = self.VTKObject
        # if method in self._override:
        #     obj = self
        if isinstance(method, dict):
            if isinstance(args, str) and args.lower() in method['options']:
                return call_vtk(self, method['options'][args.lower()])
            elif 'name' in method:
                return call_vtk(self, method['name'], args)
            else:
                raise AttributeError("Cannot find VTK name '%s'" % name)

        return call_vtk(self, method, args)

def _handle_call(self, key, name, args):
        method = self.vtk_map[key][name.lower()]
        # obj = self.VTKObject
        # if method in self._override:
        #     obj = self
        if isinstance(method, dict):
            if isinstance(args, str) and args.lower() in method['options']:
                return call_vtk(self, method['options'][args.lower()])
            elif 'name' in method:
                return call_vtk(self, method['name'], args)
            else:
                raise AttributeError("Cannot find VTK name '%s'" % name)

        return call_vtk(self, method, args)