index.js
function packageStatesSerialize () {
  if (atom.packages.serialize != null) {
    return atom.packages.serialize()
  }

  atom.packages.getActivePackages().forEach((pack) => {
    var state
    if (pack.serialize != null) state = pack.serialize()
    if (state) {
      atom.packages.setPackageState(pack.name, state)
    }
  })

  return atom.packages.packageStates
}
function packageStatesSerialize () {
  if (atom.packages.serialize != null) {
    return atom.packages.serialize()
  }

  atom.packages.getActivePackages().forEach((pack) => {
    var state
    if (pack.serialize != null) state = pack.serialize()
    if (state) {
      atom.packages.setPackageState(pack.name, state)
    }
  })

  return atom.packages.packageStates
}
function packageStatesSerialize ( ) { if ( atom . packages . serialize != null ) { return atom . packages . serialize ( ) } atom . packages . getActivePackages ( ) . forEach ( ( pack ) => { var state if ( pack . serialize != null ) state = pack . serialize ( ) if ( state ) { atom . packages . setPackageState ( pack . name , state ) } } ) return atom . packages . packageStates }
shim atom.packages.serialize in <= 1.6
shim atom . packages . serialize in < = 1 . 6