public ConfigEvaluatorBuilder addEnvironmentVariables(Map<String, String> envVars) {
    evaluatorBuilder.addEnvironmentVariables(envVars);
    return this;
  }
@Test
  public void addEnvironmentVariables() {
    var builder = ConfigEvaluatorBuilder.unconfigured();
    builder.addEnvironmentVariable("ONE", "one");
    var envVars = Map.of("TWO", "two", "THREE", "three");
    builder.addEnvironmentVariables(envVars);

    assertThat(builder.getEnvironmentVariables()).hasSize(3);
    assertThat(builder.getEnvironmentVariables()).containsEntry("ONE", "one");
    assertThat(builder.getEnvironmentVariables()).containsAllEntriesOf(envVars);
  }