Where can I download the VHT-Corstone-300 execution file?

https://github.com/ARM-software/VHT-TFLmicrospeech/blob/main/Platform_FVP_Corstone_SSE-300_Ethos-U55/run_example.sh

The script invokes the VHT-Corstone-300 (Local Tool Installation).  Where can I download the standalone version of VHT-Corstone-300?