ClientAPI.getUsedMemory

Example by ChloeSpacedOut:
events.TICK:register(function()
  log(client.getUsedMemory())
end)
-- returns memory in bytes 

Returns the number of bytes of memory Minecraft is currently using

overload 1:
                        
client.getUsedMemory()  
 Method Property Fluent Description Representation
Return Value an Integer Integer