api.v0alpha.ListCollectionsRes(ListCollectionsRes)

{
    "collections": [
        {
            "collection_id": "string",
            "collection_name": "string",
            "fields": [
                {
                    "field_name": "string",
                    "field_type": "FIELD_TYPE_STRING",
                    "field_format": "string"
                }
            ],
            "deleted": true,
            "created_by": "string",
            "created_on": "1s",
            "last_queried": "1s",
            "query_count": 0,
            "entry_count": 0,
            "last_updated": "1s",
            "search_count": 0,
            "last_searched": "1s",
            "primary_key": [
                "string"
            ]
        }
    ]
}