I Figured I had started my Journey in this thread so I may as well post the solution I am using. Keeping in mind my issues was getting the RM4 Pro RF learning and sending. I was working with Felipe Martins Diel ( Broadlink RM4 PRO is not able to learn or to send RF Signal · Issue #358 · mjg59/python-broadlink · GitHub ) who i believe has a fix however it is going to be a while till we see it production. So in the interim this is how I am using it.

Short Version
Ensure you have the latest HA (I am on 0.112.2) not sure which version brought in the first set of fixes

script:
  name_of_the_script:
    sequence:
      - service: broadlink.send
        data:
          host: [RM4 IP ADDRESS]
          packet: sgAsAhEREhESEQIEhEBEhESERISERIRARIiEQESERISERESEhEAAF3AAAAAAAAA==
The Long Version

Installing python-broadlink

Use a device with wifi (so you can connect to the Production Wifi and RM4 AP)
git clone GitHub - mjg59/python-broadlink: Python module for controlling Broadlink RM2/3 (Pro) remote controls, A1 sensor platforms and SP2/3 smartplugs

cd python-broadlink

sudo python setup.py install
Factory Reset (Ensure it is not cloud joined)
Reset hold reset button till flashes
Hold reset button to get hot spot paring
Join Computer to Broadlink WiFi to connect to the RM4
Setup RM using python-broadlink
Configure device for Wifi
python import broadlink

broadlink.setup(‘myssid’, ‘mynetworkpass’, 3)
Allow device time to reboot and connect to wifi (LED should no longer flash)
Test device communications
devices = broadlink.discover(timeout=5) devices[0].auth() > should return true devices[0].host[0]

Should return IP of Device
Capture RF sequences

NB Fix is underway for RM4 Pro broadlink.learn however not available in HA yet Broadlink RM4 PRO is not able to learn or to send RF Signal · Issue #358 · mjg59/python-broadlink · GitHub
Use broadlink_cli to capture RF codes