Cannot convert integer to boolean

[Emu.Man00]

function findValue takes nothing returns boolean
    return ( GetUnitPointValue(GetFilterUnit()) == 12 )
endfunction

function checkBetween takes nothing returns boolean
    local boolean picked = false
    //code is unimportant, i tried with only these 4 lines
    return picked
endfunction

The return line gives the error "Cannot convert integer to boolean"

function check takes nothing returns boolean
    return (GetBooleanAnd (checkBetween, findValue))
endfunction

also: in jasshelper, the above lines are shown like this:

function check takes nothing returns boolean
    return ( GetBooleanAnd((1) , (2)) )
endfunction

So, my question, obviously, is how do i fix this error?

also: the error shows up twice in jasshelper for the same line, does that mean the same error is coming for both 'checkBetween' and 'findValue'?

 

[TriggerHappy]

function check takes nothing returns boolean
    return (GetBooleanAnd (checkBetween(), findValue()))
endfunction

 

[Emu.Man00]

Blahh, of course.
I was over thinking it

tyvm. + rep