Burnerlua and turning off the remaining fuel bar

[robertpaulson]

Hi. I want to turn off the "remaining_burner_fuel" bar in one of my vehicles, I just don't know if there is a flag for it in the burner entity (setting the mentioned to nil didn't work)

btw- in here: http://lua-api.factorio.com/latest/LuaBurner.html

they mentioned help() that suppose to list all the properties of said lua, but I can't comprehend on how to use it, tried in console without any result.