GetBoardMappingParentItems.
        [Preview API] Returns the list of parent field filter model for the given list of workitem ids
        :param :class:`<TeamContext> <azure.devops.v5_0.work.models.TeamContext>` team_context: The team context for the operation
        :param str child_backlog_context_category_ref_name:
        :param [int] workitem_ids:
        :rtype: [ParentChildWIMap]

def get_board_mapping_parent_items(self, team_context, child_backlog_context_category_ref_name, workitem_ids):
        """GetBoardMappingParentItems.
        [Preview API] Returns the list of parent field filter model for the given list of workitem ids
        :param :class:`<TeamContext> <azure.devops.v5_0.work.models.TeamContext>` team_context: The team context for the operation
        :param str child_backlog_context_category_ref_name:
        :param [int] workitem_ids:
        :rtype: [ParentChildWIMap]
        """
        project = None
        team = None
        if team_context is not None:
            if team_context.project_id:
                project = team_context.project_id
            else:
                project = team_context.project
            if team_context.team_id:
                team = team_context.team_id
            else:
                team = team_context.team

        route_values = {}
        if project is not None:
            route_values['project'] = self._serialize.url('project', project, 'string')
        if team is not None:
            route_values['team'] = self._serialize.url('team', team, 'string')
        query_parameters = {}
        if child_backlog_context_category_ref_name is not None:
            query_parameters['childBacklogContextCategoryRefName'] = self._serialize.query('child_backlog_context_category_ref_name', child_backlog_context_category_ref_name, 'str')
        if workitem_ids is not None:
            workitem_ids = ",".join(map(str, workitem_ids))
            query_parameters['workitemIds'] = self._serialize.query('workitem_ids', workitem_ids, 'str')
        response = self._send(http_method='GET',
                              location_id='186abea3-5c35-432f-9e28-7a15b4312a0e',
                              version='5.0-preview.1',
                              route_values=route_values,
                              query_parameters=query_parameters)
        return self._deserialize('[ParentChildWIMap]', self._unwrap_collection(response))