code: def _parse_input_data(self, node):
          
          data = DotDict()
          try:
              for nod in self._get_input_nodes(node):
                  data.update(self._parse_input_node(nod))
          except Exception as e:
              log.exception("Error while processing node: %s" % node)
          return data
docs: Parses inputOutput part camunda modeller extensions.
          Args:
              node: SpiffWorkflow Node object.
  
          Returns:
              Data dict.