async unsubscribeTrades (symbol) {
    return this.managedUnsubscribe('trades', symbol)
  }
Unsubscribe from a trades data channel

@param {string} symbol - symbol of market to unsubscribe from
@returns {boolean} unsubscribed
@see WSv2#subscribeTrades
@example
await ws.unsubcribeTrades('tBTCUSD')