From Joomla! Documentation
The "API16" namespace is an archived namespace. This page contains information for a Joomla! version which is no longer supported. It exists only as a historical reference, it will not be improved and its content may be incomplete and/or contain broken links.
|install||Custom install method Note: This behaves badly due to hacks made in the middle of 1.5.x to add the ability to install multiple distinct packs in one install. The preferred method is to use a package to install multiple language packs.|
|update||Custom update method|
|uninstall||Custom uninstall method|
|discover||Custom discover method Finds language files|
|discover_install||Custom discover install method Basically updates the manifest cache and leaves everything alone|
jimport( 'joomla.installer.adapters.language' );