new_contents: test = {
          510:'Drug Manufacturers - Major',
          511:'Drug Manufacturers - Other'
      }
  dataset = sector(test,'2009-01-01','2009-12-31')
  results1 = dataset.get_gainers('2009-10-08',5)
  results2 = dataset.get_losers('2009-10-08',5)
  print(str(results1))
  print(str(results2))
  
subject: Create example_code.py