Add multiple bundles.

    $ echo "$PLUGIN_DIR
  $PLUGIN_DIR2" | antigen-bundles &> /dev/null

  
  Check if they are both applied.
  
    $ hehe
    hehe
    $ hehe2
    hehe2

  
  Clean it all up.
  
    $ export _ANTIGEN_BUNDLE_RECORD=""
    $ antigen-cleanup --force &> /dev/null
  
  Specify with indentation.

    $ echo "  $PLUGIN_DIR
    $PLUGIN_DIR2" | antigen-bundles &> /dev/null

  
  Again, check if they are both applied.
  
    $ hehe
    hehe
    $ hehe2
    hehe2