include ../mixins
soap:Envelope(
  xmlns:soap='http://schemas.xmlsoap.org/soap/envelope/', 
  xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance',
  xmlns:cus='http://ws.micros-retail.com/xservices/CustomerServices'
)
  soap:Header
  soap:Body
    cus:getCustomerHistory  
      cus:ServiceContext: +serviceContext(serviceContext)
      +optional('PartyId', partyId)