public Charset getCharset() {
        return charset;
    }
@Test
    void testSerializability() throws Exception {
        final SimpleStringSchema schema = new SimpleStringSchema(StandardCharsets.UTF_16LE);
        final SimpleStringSchema copy = CommonTestUtils.createCopySerializable(schema);

        assertThat(copy.getCharset()).isEqualTo(schema.getCharset());
    }