module miadll =
    [<DllImport("dll")>]
    int function1(void)

    [<DllImport("dll")>]
    int function2(void)

    [<DllImport("dll")>]
    int function3(void)

    [<DllImport("dll")>]
    int function4(void)

miadll.function1()
miadll.function2()
miadll.function3()
miadll.function4()