public function opensearch( $text = '', $limit = 10, $namespaces = array( 0 ), $suggest = true ) {

		$apiArray = array(
			'search'    => $text,
			'action'    => 'opensearch',
			'limit'     => $limit,
			'namespace' => implode( '|', $namespaces )
		);
		if( $suggest ) $apiArray['suggest'] = '';

		$OSres = $this->get_http()->get( $this->get_base_url(), $apiArray );
		return ( $OSres === false || is_null( $OSres ) ? false : json_decode( $OSres, true ) );

	}