code: def test_deprecated_methods(self):
      with warnings.catch_warnings(record=True) as ws:
          mat = torch.randn(5, 5)
          mat = mat @ mat.mT
          nlt = gpytorch.lazy.NonLazyTensor(mat)
          dlo = linear_operator.operators.DenseLinearOperator(mat)
          self.assertTrue(len(ws) == 1)
          self.assertTrue(
              issubclass(ws[0].category, DeprecationWarning)
          )
  
      with warnings.catch_warnings(record=True) as ws:
          diag = torch.randn(5)
          self.assertAllClose(
              nlt.add_diag(diag).to_dense(),
              dlo.add_diagonal(diag).to_dense(),
          )
          self.assertTrue(len(ws) == 1)
          self.assertTrue(
              issubclass(ws[0].category, DeprecationWarning)
          )
  
      with warnings.catch_warnings(record=True) as ws:
          self.assertAllClose(nlt.diag(), dlo.diag())
          self.assertTrue(len(ws) == 1)
          self.assertTrue(
              issubclass(ws[0].category, DeprecationWarning)
          )
  
      with warnings.catch_warnings(record=True) as ws:
          self.assertAllClose(nlt.evaluate(), dlo.to_dense())
          self.assertTrue(len(ws) == 1)
          self.assertTrue(
              issubclass(ws[0].category, DeprecationWarning)
          )
  
      with warnings.catch_warnings(record=True) as ws:
          rhs = torch.randn(5, 2)
          self.assertAllClose(nlt.inv_matmul(rhs), dlo.solve(rhs))
          self.assertTrue(len(ws) == 1)
          self.assertTrue(
              issubclass(ws[0].category, DeprecationWarning)
          )
  
      with warnings.catch_warnings(record=True) as ws:
          self.assertAllClose(
              nlt.symeig(eigenvectors=True)[0],
              torch.linalg.eigh(dlo)[0],
          )
          self.assertAllClose(
              nlt.symeig(eigenvectors=True)[1].to_dense(),
              torch.linalg.eigh(dlo)[1].to_dense(),
          )
          self.assertTrue(len(ws) == 1)
          self.assertTrue(
              issubclass(ws[0].category, DeprecationWarning)
          )
  
      with warnings.catch_warnings(record=True) as ws:
          self.assertAllClose(
              nlt.symeig(eigenvectors=False)[0],
              torch.linalg.eigvalsh(dlo),
          )
          self.assertTrue(len(ws) == 1)
          self.assertTrue(
              issubclass(ws[0].category, DeprecationWarning)
          )
  
      with warnings.catch_warnings(record=True) as ws:
          a = torch.randn(5, 2)
          b = torch.randn(5, 2)
          self.assertAllClose(
              nlt._quad_form_derivative(a, b)[0],
              dlo._bilinear_derivative(a, b)[0],
          )
          self.assertTrue(len(ws) == 1)
          self.assertTrue(
              issubclass(ws[0].category, DeprecationWarning)
          )
  
file_path: gpytorch/test/lazy/test_lazy_tensor_deprecation.py
imports: import unittest
  import warnings
  import linear_operator
  import torch
  import gpytorch
  from gpytorch.test.base_test_case import BaseTestCase
label_desc: Use image node_id 2 for calling the LazyTensorImport obj's underlying member method code with example usage: obj.test_deprecated_methods() without return types