Let me be more clear, If we take trades that happened in passed 5 minute and also take that 5 minutes taker buy volume, will they be equal? Can u explain this to me.
According to this endpoint (Binance API Documentation), if you take the trades where isBuyerMaker= false, you can get the taker buy volume.
Read more about taker and maker here (Market Makers and Market Takers Explained | Binance Academy)