функции в функцию

    function One()
        bla
    end
    ---
    function Two()
        bla
    end
    ---
    function Three()
        bla
    end
    ---
    function Four()
        bla
    end
    ---
    function Five()
        bla
    end
    ---
    function Six()
        bla
    end
    ---
    function Seven()
        bla
    end
    ---

    function main(fun_1(???),fun_2(???))
        if something then
            --fun_1(????????) 
        else
            --fun_2(????????)
        end
    end
 

   
    if     bla_1 then
        main(One(),Two())
    elseif bla_2 then
        main(Three(),Four())
    elseif bla_3 then
        main(Five(),Four())
    elseif bla_4 then
        main(Six(),Seven())
    elseif bla_5 then
        main(Seven(),One())
    end