if condition not working

[MeenuKumari28]

-- ds.row:
inset: $ds.spaces.inset-square.medium
spacing if { !storybook.sidebar }: $ds.spaces.horizontal-gap.space-between
border: $ds.borders.bottom.small
border-color: $ds.colors.border-strong
radius: $ds.radius.zero

-- ftd.image: 
if: { !storybook.sidebar }
src: $assets.files.assets.storybook.logo.svg

-- ftd.image:
src: $assets.files.assets.storybook.close.svg
src if { storybook.sidebar }: $assets.files.assets.storybook.open.svg
$on-click$: $ftd.toggle($a = $storybook.sidebar)
height.fixed.px: 34

-- end: ds.row

@harshdoesdev