code: def reqTickByTickData(
              self, contract: Contract, tickType: str,
              numberOfTicks: int = 0, ignoreSize: bool = False) -> Ticker:
          
          reqId = self.client.getReqId()
          ticker = self.wrapper.startTicker(reqId, contract, tickType)
          self.client.reqTickByTickData(
              reqId, contract, tickType, numberOfTicks, ignoreSize)
          return ticker
docs: Subscribe to tick-by-tick data and return the Ticker that
          holds the ticks in ticker.tickByTicks.
  
          https://interactivebrokers.github.io/tws-api/tick_data.html
  
          Args:
              contract: Contract of interest.
              tickType: One of  'Last', 'AllLast', 'BidAsk' or 'MidPoint'.
              numberOfTicks: Number of ticks or 0 for unlimited.
              ignoreSize: Ignore bid/ask ticks that only update the size.