text: from . import base
  
  
  class Count(base.Univariate):
      """A simple counter.
  
      Attributes:
          n (int): The current number of observations.
  
      """
  
      def __init__(self):
          self.n = 0
  
      @property
      def name(self):
          return 'count'
  
      def update(self, x=None):
          self.n += 1
          return self
  
      def get(self):
          return self.n
  