(TranslationUnit
    [(Subroutine
        add
        [(a)
        (b)
        (c)]
        []
        ()
        ()
        []
        []
        []
        [(Declaration
            (AttrType
                TypeReal
                []
                ()
                ()
                None
            )
            [(AttrIntent
                In
            )]
            [(a
            []
            []
            ()
            ()
            None
            ())
            (b
            []
            []
            ()
            ()
            None
            ())]
            ()
        )
        (Declaration
            (AttrType
                TypeReal
                []
                ()
                ()
                None
            )
            [(AttrIntent
                Out
            )]
            [(c
            []
            []
            ()
            ()
            None
            ())]
            ()
        )]
        [(Assignment
            0
            c
            (+ a b)
            ()
        )]
        []
        []
    )]
)
