code: def reading_time(self, text: TextT):
          
  
          wc = re.findall(r'\w+', text)
          period = 60.0 / settings.USERS_READING_SPEED
          return float(len(wc)) * period + settings.USERS_READING_BUBBLE_START
docs: Computes the time in seconds that the user will need to read a bubble
          containing the text passed as parameter.