TensorRT RNN support: Unable to locate convertTFRNNWtsToTRTWts.py (TensorRT4RC)

Hi, I am following the documentation on : https://docs.nvidia.com/deeplearning/sdk/tensorrt-developer-guide/index.html to convert the RNN weights from Tensorflow to TensorRT.
It states “A python script /usr/src/tensorrt/scripts/convertTFRNNWtsToTRTWts.py has been provided to extract the weights from the model checkpoint files that are created during training. Use convertTFRNNWtsToTRTWts.py -h for directions on the usage of the script.” However, there is no ‘scripts’ folder under /usr/src/tensorrt. Any help would be appreciated. My current setup: TensorRT 4RC, Tensorflow 1.8, Cuda 9.0, Cudnn 7.1.2.