code: def test_smoke(self, device, dtype):
      vec = Vector2.random(device=device, dtype=dtype)
      assert vec.shape == (2,)
      vec.x is not None
      vec.y is not None
  
imports: import pytest
  import torch
  from kornia.geometry.vector import Scalar, Vector2, Vector3
  from kornia.testing import BaseTester
label_desc: Use image node_id 1 for calling the TestVector2 obj's underlying member method code with example usage: obj.test_smoke(device, dtype) without return types