'Load and initialize plugins by names.
Similar setting a list of plugins in the configuration. Make
sure you call ``unload_plugins()`` afterwards.'

def load_plugins(self, *plugins):

    beets.config['plugins'] = plugins
    beets.plugins.load_plugins(plugins)
    beets.plugins.find_plugins()
    Item._original_types = dict(Item._types)
    Album._original_types = dict(Album._types)
    Item._types.update(beets.plugins.types(Item))
    Album._types.update(beets.plugins.types(Album))
