API Documentation

Hello,

can someone please help me to understand the API Documentation? I'd like to get the current ARP table of a Sophos XGS, but I'm not sure how the XML request should look like. I've found this in the documentation: https://docs.sophos.com/nsg/sophos-firewall/19.5/API/CONFIGURE/Network/ARP/operations/FlushAllDynamicEntries&GetDynamicNeighbourEntries.html

I'd like to perform the operation "Get Dynamic Neighbour Entries", but I can't figure out how... Where do I find the method name that should be executed? My current XML looks like this:

<?xml version="1.0" encoding="UTF-8"?>
<Request>
  <Login>
    <UserName>apiuser</UserName>
    <Password>password</Password>
  </Login>
  <Get>
    <DynamicNeighbourEntries/>
  </Get>
</Request>

-Daniel