public function redaction($element, $id, $version, $redactionId)
	{
		if ($element != 'node' && $element != 'way' && $element != 'relation')
		{
			throw new \DomainException('Element should be a node, a way or a relation');
		}

		$token = $this->oauth->getToken();

		// Set parameters.
		$parameters = array(
			'oauth_token' => $token['key'],
		);

		// Set the API base
		$base = $element . '/' . $id . '/' . $version . '/redact?redaction=' . $redactionId;

		// Build the request path.
		$path = $this->getOption('api.url') . $base;

		// Send the request.
		$response = $this->oauth->oauthRequest($path, 'PUT', $parameters);

		return simplexml_load_string($response->body);
	}