code: def test_getitem(self, device, dtype, batch_size):
      z = torch.rand(batch_size, dtype=torch.cfloat, device=device)
      t = torch.rand((batch_size, 2), device=device, dtype=dtype)
      s = Se2(So2(z), t)
      for i in range(batch_size):
          s1 = s[i]
          self.assert_close(s1.r.z, z[i])
          self.assert_close(s1.t, t[i])
  
imports: import pytest
  import torch
  from kornia.geometry.liegroup import Se2, So2
  from kornia.geometry.vector import Vector2
  from kornia.testing import BaseTester
label_desc: Use image node_id 9 for calling the TestSe2 obj's underlying member method code with example usage: obj.test_getitem(device, dtype, batch_size) without return types