server.enqueue(
      MockResponse.Builder()
        .addHeaderLenient("Alpha", "α")
        .addHeaderLenient("β", "Beta")
        .build(),
    )
    val call = client.newCall(Request(server.url("/")))
    val response = call.execute()
    response.close()
    assertThat(response.header("Alpha")).isEqualTo("α")
    assertThat(response.header("β")).isEqualTo("Beta")
  }

  // converted to when written to the data store. Value must be treated
  // as opaque by clients. Only equality comparison on the value is valid.
  // This is an alpha feature and may change or be removed in the future.
  // The field is populated by the apiserver only if the
  // StorageVersionHash feature gate is enabled.
  // This field will remain optional even if it graduates.