{"meta": {"count": 255397, "db_response_time_ms": 18, "page": 1, "per_page": 200, "groups_count": 2, "x_query": {"oql": "sources group by CWTS core", "oqo": {"get_rows": "sources", "group_by": [{"column_id": "is_core"}]}, "url": "/sources?group_by=is_core"}, "cost_usd": 0.0001}, "group_by": [{"key": "0", "key_display_name": "false", "count": 219757}, {"key": "1", "key_display_name": "true", "count": 35640}]}