Cannot find Harqentity() function of example 'Modeling5​GNRTranspo​rtChannels​WithHARQEx​ample' in my 5G Toolbox

Hi all,

Is there any way of getting HARQEntity() function. I cannot find the 'Modeling5GNRTransportChannelsWithHARQExample' example in my 5G Toolbox. Hence, I copied the code from the following link: https://www.mathworks.com/help/5g/gs/model-5g-nr-transport-channels-with-harq.html

But I am unable to run this code without the HARQEntity() function.

I have Matlab R2021a with 5G Toolbox version 2.2