public function deserialize($serializedPayload)
	{
		$xpath = $this->_helper->getPayloadAsXPath($serializedPayload, $this->_getXmlNamespace());
		$this->_deserializeExtractionPaths($xpath)
			->_deserializeOptionalExtractionPaths($xpath)
			->_deserializeBooleanExtractionPaths($xpath)
			->_deserializeLineItems($serializedPayload)
			->_deserializeSubpayloadExtractionPaths($xpath)
			->_deserializeDateTimeExtractionPaths($xpath)
			->_deserializeExtra($serializedPayload);
		return $this;
	}