deep.js
function unbox(value){
  if (value instanceof ResType) return when(value, unbox)
  if (value && typeof value == 'object') return unboxAll(value)
  return value
}
function unbox(value){
  if (value instanceof ResType) return when(value, unbox)
  if (value && typeof value == 'object') return unboxAll(value)
  return value
}
function unbox ( value ) { if ( value instanceof ResType ) return when ( value , unbox ) if ( value && typeof value == 'object' ) return unboxAll ( value ) return value }
unbox all values in `obj` recursively

@param {Object|Array} obj
@return {Result} for a new `obj`
unbox all values in obj recursively