arch

var spanGroupData = [ {"timestamp": 1543651200, "group": [ {"author_id": 0, "token_count": 46}, ]}, {"timestamp": 1569913200, "group": [ {"author_id": 0, "token_count": 215}, ]}, {"timestamp": 1619852400, "group": [ {"author_id": 2, "token_count": 9}, ]}, {"timestamp": 1635750000, "group": [ {"author_id": 0, "token_count": 20}, ]}, {"timestamp": 1682924400, "group": [ {"author_id": 0, "token_count": 24}, ]}, {"timestamp": 1698822000, "group": [ {"author_id": 1, "token_count": 30}, ]}, {"timestamp": 1714546800, "group": [ {"author_id": 0, "token_count": 6}, ]}, {"timestamp": 1725174000, "group": [ {"author_id": 0, "token_count": 1}, ]}, {"timestamp": 1764576000, "group": [ {"author_id": 3, "token_count": 4}, ]}, {"timestamp": 1772352000, "group": [ {"author_id": 0, "token_count": 1}, ]}, ]