```coffeescript
#= require lazysizes/plugins/rias/ls.rias
#= require lazysizes/plugins/bgset/ls.bgset
#= require lazysizes/plugins/unload/ls.unload
#= require lazysizes
```

Revert "remove respimg plugin and add unload plugin"
user
```coffeescript
#= require lazysizes/plugins/rias/ls.rias
#= require lazysizes/plugins/bgset/ls.bgset
#= require lazysizes/plugins/respimg/ls.respimg
#  require lazysizes/plugins/custommedia/ls.custommedia
#= require lazysizes```
assistant