code: def test_dot(self, device, dtype, shape):
      p0 = Vector2.random(shape, device, dtype)
      n0 = Vector2.random(shape, device, dtype).normalized()
      res: Scalar = p0.dot(n0)
      assert res.shape == () if shape is None else shape
      expected = torch.ones(shape or (), device=device, dtype=dtype)
      self.assert_close(n0.dot(n0), expected)
  
imports: import pytest
  import torch
  from kornia.geometry.vector import Scalar, Vector2, Vector3
  from kornia.testing import BaseTester
label_desc: Use image node_id 6 for calling the TestVector2 obj's underlying member method code with example usage: obj.test_dot(device, dtype, shape) without return types