code: def match_any_learning_objective(self, match):
          
          match_key = 'learningObjectiveIds'
          param = '$exists'
          if match:
              flag = 'true'
          else:
              flag = 'false'
          if match_key in self._my_osid_query._query_terms:
              self._my_osid_query._query_terms[match_key][param] = flag
          else:
              self._my_osid_query._query_terms[match_key] = {param: flag}
          self._my_osid_query._query_terms[match_key]['$nin'] = [[], ['']]
docs: Matches an item with any objective.
  
          arg:    match (boolean): ``true`` to match items with any
                  learning objective, ``false`` to match items with no
                  learning objectives
          *compliance: mandatory -- This method must be implemented.*