code: from unittest.case import TestCase
  
  from pandas import Series, DataFrame
  
  from probability.distributions import Beta, Dirichlet
  
  
  class BaseTest(TestCase):
  
      def setUp(self) -> None:
  
          self.b1 = Beta(700, 300)
          self.b2 = Beta(600, 400)
          self.b3 = Beta(500, 500)
          self.d1 = Dirichlet([500, 300, 200])
          self.d2 = Dirichlet({'x': 100, 'y': 200, 'z': 300})
          self.b1__mul__b2 = self.b1 * self.b2
          self.b3__mul__b1__mul__b2 = self.b3 * self.b1__mul__b2
          self.b1__mul__comp__b1 = self.b1 * (1 - self.b1)
          self.b_series = Series({
              'b1': self.b1, 'b2': self.b2, 'b3': self.b3
          })
          self.b_frame = DataFrame({
              'c1': {'r1': self.b1, 'r2': self.b2},
              'c2': {'r1': self.b2, 'r2': self.b3}
          })
          self.float_series = Series({'$100': 0.8, '$200': 0.6})
  
apis: pandas.Series pandas.DataFrame