public function get($coid) {
		if (is_string($coid))
			return $this->getObject(new IRI($coid));

		if (is_object($coid) && get_class($coid)=='ML\IRI\IRI')
			return $this->getObject($coid);

		throw new \Exception('COID must be passed as a string or an IRI object.');
	}