def visited(self):
        try:
            binfo = self.binfo
        except AttributeError:
            # Apparently this node doesn't need build info, so
            # don't bother calculating or storing it.
            pass
        else:
            self.ninfo.update(self)
            self.store_info()
Confirms pre_block_migration works correctly.
dataset/ETHPy150Open kayhayen/Nuitka/nuitka/build/inline_copy/lib/scons-2.3.2/SCons/Node/__init__.py/Node.visited--crossover with--dataset/ETHPy150Open nii-cloud/dodai-compute/nova/tests/test_libvirt.py/LibvirtConnTestCase.test_get_instance_disk_info_works_correctly