No Data In Table Using Openperipherals On Railcraft Tank

Hello everyone :)/>
I'm having a little trouble getting tank data from a Railcraft Iron Tank filled with water.

The following code only gives me 1, 0 if I write the table to a monitor.

local ironTankValve = peripheral.wrap("back")
local monitor = peripheral.wrap("top")
local tableInfo = ironTankValve.getTanks("back")

for k, v in pairs(tableInfo) do
  monitor.write(k, v)
end

Am I doing something wrong? I've done some coding but I never really wrapped my head around the whole table thing but my code should print out all the data in the tanks table right?

Any help is appreciated :D/>

The documentation for an IronTankValve peripheral:

Spoiler

local ironTankValve = peripheral.wrap("left")

getTanks() Get information about an internal tank inside the block

local tableInfo = ironTankValve.getTanks(side)
for key, value in pairs(tableInfo) do
  print(key .. " = " .. tostring(value))
end

Split into new topic.

You might try asking over on the OpenPeripheral topic in the Peripherals section.

Thanks! I've already made one. I'll update this topic if I know something new :)/>