/**
  * Checks wether the given message part holds non header data.
  *
  * @param ckWsdlPart $input A message part to check
  *
  * @return boolean True, if the message part holds non header data, false otherwise
  */
 private function isBodyPart(ckWsdlPart $input)
 {
     return !$input->isHeader();
 }