Passive BLE Monitor integration & Granting Python Rootless Access to the HCI Interface

I am running Home Assistant 2021.7.3 on Unraid 6.9.2 and the Passive BLE Monitor integration requires that I grant permissions for Python to have rootless access to the HCI interface. Being the newbie that I am, I do not know how to do that. Specifically, the installation of the component requires this line: sudo setcap 'cap_net_raw,cap_net_admin+eip' 'readlink -f \'which python3\''

I know the folder for python3 but I don’t understand the setcap parameters. When I run the command from the Unraid console, I get:

sudo setcap 'cap_net_raw,cap_net_admin+eip' 'readlink -f /usr/bin/python3'
sudo: setcap: command not found

Lost past this - Might I trouble the audience for a solution please?