listmethods <side> [<id>]

args = {...}

local net = peripheral.wrap(args[1])

if net.getNamesRemote then
    for _,id in ipairs(net.getNamesRemote()) do

        if not args[2] or args[2] == id then
            print("net -> "..id)

            for i,v in ipairs(net.getMethodsRemote(id)) do
                print("     "..i..". "..v)
            end

            print(" ")
        end
    end
else
    print(peripheral.getType(args[1]))
    for i,v in ipairs(peripheral.getMethods(args[1])) do
        print("     "..i..". "..v)
    end
end