code: def get_conditional_uni(cls, left_parent, right_parent):
          
          left, right, _ = cls._identify_eds_ing(left_parent, right_parent)
  
          left_u = left_parent.U[0] if left_parent.L == left else left_parent.U[1]
          right_u = right_parent.U[0] if right_parent.L == right else right_parent.U[1]
  
          return left_u, right_u
docs: Identify pair univariate value from parents.
  
          Args:
              left_parent(Edge): left parent
              right_parent(Edge): right parent
  
          Returns:
              tuple[np.ndarray, np.ndarray]: left and right parents univariate.