def METHOD_NAME(self):
    with self.assertWarns(ConfigurationWarning) as warning:
        tree, meta = config.get_parser("json").parse(
            get_content("indoc_import_overwrite.json")
        )
    self.assertEqual(2, len(tree["imp"].keys()))
    self.assertIn("importable", tree["imp"])
    self.assertIn("with", tree["imp"])
    self.assertEqual(
        ["importable", "with"],
        list(tree["imp"].keys()),
        "Imported keys should follow on original keys",
    )
    self.assertEqual(10, tree["imp"]["importable"])