@Override
  public String format(final Schema schema) {
    final String converted = SchemaWalker.visit(schema, new Converter()) + typePostFix(schema);

    return options.contains(Option.AS_COLUMN_LIST)
        ? stripTopLevelStruct(converted)
        : converted;
  }
@Test
  public void shouldFormatBytes() {
    assertThat(DEFAULT.format(Schema.BYTES_SCHEMA), is("BYTES"));
    assertThat(STRICT.format(Schema.BYTES_SCHEMA), is("BYTES NOT NULL"));
  }