@Override
  public AesCtrHmacStreamingParameters getParameters() {
    return parameters;
  }
Represents a StreamingAead functions.

<p>See https://developers.google.com/tink/streaming-aead/aes_gcm_hkdf_streaming.
java_src/src/main/java/com/google/crypto/tink/streamingaead/AesCtrHmacStreamingKey.java