serialization different function formation

a.js

const serializeOfferingOptions = R.map(R.compose(
  R.pick([
    'offeringOptions',
    'offeringId',
    'offeringPackageOptionId',
    'durationAmount',
    'durationTypeId',
    'startDate',
    'selectedPackageOptionItems'
  ]),
  R.when(R.has('selectedPackageOptionItems'),
    overProp('selectedPackageOptionItems', R.map(R.omit('offering')))
  )
))

const serializePreviewFilter = R.compose(
  overProp('offeringOptions', serializeOfferingOptions),
  addMinMaxAge,
  addCustomItems,
)