public com.google.protobuf.ByteString getMuxStreamsBytes(int index) {
      return muxStreams_.getByteString(index);
    }
<pre>
Required. List of `MuxStream`
[key][google.cloud.video.livestream.v1.MuxStream.key]s that should appear
in this manifest.

- For HLS, either `fmp4` or `ts` mux streams can be specified but not
mixed.
- For DASH, only `fmp4` mux streams can be specified.
</pre>

<code>repeated string mux_streams = 3 [(.google.api.field_behavior) = REQUIRED];</code>

@param index The index of the value to return.
@return The bytes of the muxStreams at the given index.
java-video-live-stream/proto-google-cloud-live-stream-v1/src/main/java/com/google/cloud/video/livestream/v1/Manifest.java