docs: def eval_rs(gains, losses):
          """ Evaluates the RS variable in RSI algorithm
  
          Args:
              gains: List of price gains.
              losses: List of prices losses.
  
          Returns:
              Float of average gains over average losses.
          """
          # Number of days that the data was collected through
          count = len(gains) + len(losses)
  
          avg_gains = stats.avg(gains, count=count) if gains else 1
          avg_losses = stats.avg(losses,count=count) if losses else 1
          if avg_losses == 0:
              return avg_gains
          else:
              return avg_gains / avg_losses