code: def target_doc(self):
          
          if not hasattr(self, "_target_doc") or not self._target_doc:
              if self._existing:
                  self._target_doc = self._existing.get("target_doc", {})
          return self._target_doc
docs: Returns resource doc as at the target, when the posting was already created \
             at the target. This property normally contains the **target_doc** data from \
             the livebrigde storage item, saved in a syndication earlier.
  
          :returns: dict