src/rise.js
function _compatibility (rs) {
  const _rs = [rs.rise, rs.transit, rs.set]
  _rs.rise = rs.rise
  _rs.transit = rs.transit
  _rs.set = rs.set
  return _rs
}
function _compatibility (rs) {
  const _rs = [rs.rise, rs.transit, rs.set]
  _rs.rise = rs.rise
  _rs.transit = rs.transit
  _rs.set = rs.set
  return _rs
}
function _compatibility ( rs ) { const _rs = [ rs . rise , rs . transit , rs . set ] _rs . rise = rs . rise _rs . transit = rs . transit _rs . set = rs . set return _rs }
maintain backward compatibility - will be removed in v2 return value in future will be an object not an array
maintain backward compatibility - will be removed in v2 return value in future will be an object not an array