code: func Fault(msg string, fault types.BaseMethodFault) *soap.Fault {
  	f := &soap.Fault{
  		Code:   "ServerFaultCode",
  		String: msg,
  	}
  
  	f.Detail.Fault = fault
  
  	return f
  }
docs: // Fault wraps the given message and fault in a soap.Fault