code: def getFieldNames(self):
      return ["unixtime", "price", "amount"]
  
imports: from pyalgotrade import barfeed
  from pyalgotrade import bar
  from pyalgotrade.barfeed import csvfeed
  from pyalgotrade.utils import dt
  import datetime
label_desc: Use image node_id 3 for calling the RowParser obj's underlying member method code with example usage: obj.getFieldNames() and returns: list