duplet in 3

[David Bobroff]

I need to produce a pair of half notes in 3/4 time with a duple
bracket.  The following code gives me the correct printed notes and time
values but I have not found a way to override the number in the
bracket.  It is printing a '4' as advertised but I need a '2'.

-David

\paper{
    linewidth = 7\cm
}

\score { 
    
    \context Staff \relative c {
        \time 3/4
        \clef F
        \times 3/4 {c2-> bes->}
    }
}