code: def example_point(self):
          
          if not np.isinf(self.min):
              return np.array([self.min], dtype=self.dtype)
          if not np.isinf(self.max):
              return np.array([self.max], dtype=self.dtype)
          else:
              return np.array([0], dtype=self.dtype)
docs: Returns any single point guaranteed to be in the domain, but
          no other guarantees; useful for testing purposes.
          This is given as a size 1 ``np.array`` of type ``dtype``.
  
          :type: ``np.ndarray``