[lua]
    code = <<
        local mage_unit = wesnoth.get_recall_units({ side = 1, role = "mage" })[1]

        if not mage_unit then
            mage_unit = wesnoth.get_recall_units({
                side = 1,
                type = "Red Mage, White Mage, Mage, Arch Mage, Silver Mage, Mage of Light, Great Mage",
                { "not", {
                    canrecruit = true,
                }}
            })[1]

            if mage_unit then
                mage_unit.role = "mage"
            else
                mage_unit = wesnoth.create_unit({
                    type = "Mage",
                    side = 1,
                    role = "mage",
                    animate = true,
                    placement = "leader",
                })
            end
        end

        wesnoth.put_unit(mage_unit)
    >>
[/lua]