def METHOD_NAME(self) -> None:
    self.x = cvx.Variable(2, name='x')
    self.y = cvx.Variable(2, name='y')
    self.A = cvx.Variable((2, 2), name='A')
    self.B = cvx.Variable((2, 2), name='B')
    self.C = cvx.Variable((3, 2), name='C')