public NamedRuleItemNodePath getNamedItem(final String itemType) {
        return namedItems.get(itemType);
    }
@Test
    void assertGetNamedItem() {
        NamedRuleItemNodePath namedRulePath = ruleNodePath.getNamedItem("tables");
        assertThat(namedRulePath.getPath("foo_table"), is("tables/foo_table"));
        Optional<String> path = namedRulePath.getName("/metadata/foo_db/rules/foo/tables/foo_table/versions/0");
        assertTrue(path.isPresent());
        assertThat(path.get(), is("foo_table"));
    }