The !ticker@arr stream doesn't work anymore at Spot Testnet #978
Description
Today the !ticker@arr stream was removed from Spot Testnet. Maybe it could be removed from Mainnet too in a near future: https://github.com/binance/binance-spot-api-docs/blob/master/testnet/CHANGELOG.md
The Binance docs suggests to use !miniTicker@arr instead.
The change should be made on prevDayStream function of the node-binance-api lib or this function maybe should connect only on production stream once we already have a miniTicker function.