public String anonymize(final ParseTree tree) {
    return build(tree);
  }
@Test
  public void shouldAnonymizeCreateTypeCorrectly() {
    // simple statement
    Assert.assertEquals("CREATE TYPE type AS INTEGER;",
        anon.anonymize("CREATE TYPE ADDRESS AS INTEGER;"));

    // more elaborate statement
    final String output = anon.anonymize(
        "CREATE TYPE ADDRESS AS STRUCT<number INTEGER, street VARCHAR, city VARCHAR>;");

    Approvals.verify(output);
  }