code: def est_payouts(self):
          '''
          Calculate current estimate of average payout for each bandit.
  
          Returns
          -------
          array of floats or None
          '''
  
          if len(self.choices) < 1:
              print('slots: No trials run so far.')
              return None
          else:
              return self.wins/(self.pulls+0.1f est_payouts(self):
          '''
          Calculate current estimate of average payout for each bandit.
  
          Returns
          -------
          array of floats or None
          '''
  
          if len(self.choices) < 1:
              print('slots: No trials run so far.')
              return None
          else:
              return self.wins/(self.pulls+0.1)
docs: Calculate current estimate of average payout for each bandit.
  
          Returns
          -------
          array of floats or None