public static LivestreamServiceFutureStub newFutureStub(io.grpc.Channel channel) {
    io.grpc.stub.AbstractStub.StubFactory<LivestreamServiceFutureStub> factory =
        new io.grpc.stub.AbstractStub.StubFactory<LivestreamServiceFutureStub>() {
          @java.lang.Override
          public LivestreamServiceFutureStub newStub(
              io.grpc.Channel channel, io.grpc.CallOptions callOptions) {
            return new LivestreamServiceFutureStub(channel, callOptions);
          }
        };
    return LivestreamServiceFutureStub.newStub(factory, channel);
  }
Creates a new ListenableFuture-style stub that supports unary calls on the service
java-video-live-stream/grpc-google-cloud-live-stream-v1/src/main/java/com/google/cloud/video/livestream/v1/LivestreamServiceGrpc.java