code: def _are_aligned_angles(self, b1, b2):
          "Are two boxes aligned according to their angle?"
          return abs(b1 - b2) <= self.angle_tol or abs(np.pi - abs(b1 - b2)) <= self.angle_tof _are_aligned_angles(self, b1, b2):
          "Are two boxes aligned according to their angle?"
          return abs(b1 - b2) <= self.angle_tol or abs(np.pi - abs(b1 - b2)) <= self.angle_tol
docs: Are two boxes aligned according to their angle?