def get_boundary_inputs(self):
        if self._bndryins is None:
            self._bndryins = [n for n in self.nodes_iter()
                                if is_boundary_node(self, n) and
                                   is_input_base_node(self, n)]
        return self._bndryins[:]
Returns inputs that are on the component boundary.
dataset/ETHPy150Open OpenMDAO/OpenMDAO-Framework/openmdao.main/src/openmdao/main/depgraph.py/DependencyGraph.get_boundary_inputs