public function multisite_convert( $args, $assoc_args ) {
		if ( is_multisite() ) {
			WP_CLI::error( 'This already is a multisite install.' );
		}

		$assoc_args = self::set_multisite_defaults( $assoc_args );
		if ( ! isset( $assoc_args['title'] ) ) {
			// translators: placeholder is blog name
			$assoc_args['title'] = sprintf( _x( '%s Sites', 'Default network name' ), get_option( 'blogname' ) );
		}

		if ( $this->multisite_convert_( $assoc_args ) ) {
			WP_CLI::success( "Network installed. Don't forget to set up rewrite rules (and a .htaccess file, if using Apache)." );
		}
	}