builder = builder.addAll(headersOf())
    builder = builder.add("", Date(0L))
    builder = builder.add("", Instant.EPOCH)
    builder = builder.set("", "")
    builder = builder.set("", Date(0L))
    builder = builder.set("", Instant.EPOCH)
    builder = builder.removeAll("")
    val get: String? = builder[""]
    val headers: Headers = builder.build()
  }

  @Test

    *   Added a new `rerandomize_each_iteration` argument for the `tf.data.Dataset.sample_from_datasets()` operation, which controls whether the sequence...