Binance: PERCENT_PRICE does not map properties

[ts-00]

When using the xchange binance api to get the asset information via BinanceExchangeInfo and look for the PERCENT_PRICE filter, I get this

{
                "filterType": "PERCENT_PRICE",
                "maxPrice": null,
                "maxQty": null,
                "minNotional": null,
                "minPrice": null,
                "minQty": null,
                "stepSize": null,
                "tickSize": null
            },

However, according to official binance docs, there are the following properties:

{
  "filterType": "PERCENT_PRICE",
  "multiplierUp": "1.3000",
  "multiplierDown": "0.7000",
  "avgPriceMins": 5
}

How can I get those properties?

The same goes also for the other filter types (for example, MAX_POSITION)..the mappings between xchange binance api and official binance rest api is not complete..for example, is misses maxNumAlgoOrders, limit,..

"filters": [
            {
                "filterType": "PRICE_FILTER",
                "maxPrice": "1000.00000000",
                "maxQty": null,
                "minNotional": null,
                "minPrice": "0.00010000",
                "minQty": null,
                "stepSize": null,
                "tickSize": "0.00010000"
            },
            {
                "filterType": "PERCENT_PRICE",
                "maxPrice": null,
                "maxQty": null,
                "minNotional": null,
                "minPrice": null,
                "minQty": null,
                "stepSize": null,
                "tickSize": null
            },
            {
                "filterType": "LOT_SIZE",
                "maxPrice": null,
                "maxQty": "92141578.00000000",
                "minNotional": null,
                "minPrice": null,
                "minQty": "1.00000000",
                "stepSize": "1.00000000",
                "tickSize": null
            },
            {
                "filterType": "MIN_NOTIONAL",
                "maxPrice": null,
                "maxQty": null,
                "minNotional": "10.00000000",
                "minPrice": null,
                "minQty": null,
                "stepSize": null,
                "tickSize": null
            },
            {
                "filterType": "ICEBERG_PARTS",
                "maxPrice": null,
                "maxQty": null,
                "minNotional": null,
                "minPrice": null,
                "minQty": null,
                "stepSize": null,
                "tickSize": null
            },
            {
                "filterType": "MARKET_LOT_SIZE",
                "maxPrice": null,
                "maxQty": "34168.41597222",
                "minNotional": null,
                "minPrice": null,
                "minQty": "0.00000000",
                "stepSize": "0.00000000",
                "tickSize": null
            },
            {
                "filterType": "MAX_NUM_ORDERS",
                "maxPrice": null,
                "maxQty": null,
                "minNotional": null,
                "minPrice": null,
                "minQty": null,
                "stepSize": null,
                "tickSize": null
            },
            {
                "filterType": "MAX_NUM_ALGO_ORDERS",
                "maxPrice": null,
                "maxQty": null,
                "minNotional": null,
                "minPrice": null,
                "minQty": null,
                "stepSize": null,
                "tickSize": null
            }