DEPRECATED: use /v2/liqLevelsSize?advanceFilter=anchor_1h|anchor_4h|anchor_1d instead. Measures the aggregated size of predicted liquidation levels, anchored daily, 4-hourly, or hourly (UTC timezone). It calculates the total notional size of long and short liquidation levels at each anchor point, along with the delta (difference between long and short sizes). This highlights not only the magnitude of potential liquidation events but also the directional imbalance between long and short positioning.