Testing

interface = peripheral.wrap("right")
screen = peripheral.wrap("left")
term.redirect(screen)

function toString(object)
    if type(object) == "table" then
        output = "{"
        for key, value in pairs(object) do
            output = output .. key .. ":" .. toString(value)
        end
        return output .. "}"
    else if type(object) == "string" then
        return object
    else if type(object) == "bool" then
        if object then
            return "true"
        else
            return "false"
        end
    end
end

CPUs = interface.getCraftingCPUs()
print(toString(CPUs))