val longTag = 20170815L as Long?
    val objectTag = Any()
    val request =
      Request
        .Builder()
        .url("https://square.com")
        .tag(Any::class, objectTag)
        .tag(String::class, stringTag)
        .tag(Long::class, longTag)
        .build()
    assertThat(request.tag<Any>()).isSameInstanceAs(objectTag)
    assertThat(request.tag(Any::class)).isSameInstanceAs(objectTag)

  fun multipleTags() {
    val uuidTag = UUID.randomUUID()
    val stringTag = "dilophosaurus"
    val longTag = 20170815L as Long?
    val objectTag = Any()
    val request =
      Request
        .Builder()
        .url("https://square.com")
        .tag(Any::class.java, objectTag)
        .tag(UUID::class.java, uuidTag)
        .tag(String::class.java, stringTag)
        .tag(Long::class.javaObjectType, longTag)