code: def clearTickers(self):
      self.setRowCount(0)
      self.conId2Row.clear()
  
file_path: ib_insync/examples/qt_ticker_table.py
imports: import asyncio
  import PyQt5.QtWidgets
  from ib_insync import IB, util
  from ib_insync.contract import *
label_desc: Use image node_id 4 for calling the TickerTable obj's underlying member method code with example usage: obj.clearTickers() without return types