def ex_list_tag_keys(self, id=None, name=None,
                         value_required=None, display_on_report=None):
        params = {}
        if id is not None:
            params['id'] = id
        if name is not None:
            params['name'] = name
        if value_required is not None:
            params['valueRequired'] = str(value_required).lower()
        if display_on_report is not None:
            params['displayOnReport'] = str(display_on_report).lower()

        paged_result = self.connection.paginated_request_with_orgId_api_2(
            'tag/tagKey',
            method='GET',
            params=params
        )

        tag_keys = []
        for result in paged_result:
            tag_keys.extend(self._to_tag_keys(result))
        return tag_keys
List tag keys in the Dimension Data Cloud
dataset/ETHPy150Open apache/libcloud/libcloud/compute/drivers/dimensiondata.py/DimensionDataNodeDriver.ex_list_tag_keys