code: def test_basic_add(self):
      class SimpleOp(nn.Module):
          def forward(self, x):
              t = torch.tensor([-1.0, -0.5, 0.2])
              out1 = x.add(t)
              out2 = x.add(t, alpha=2)
              # out3 = x.add_(t)
              return out1, out2  # , out3
  
      self.checkExportImport(
          SimpleOp(), (torch.tensor([-1.0, -0.5, 0.2]),)
      )
  
imports: import unittest
  import torch
  import nni.nas.nn.pytorch.layers
  from .convert_mixin import ConvertMixin, ConvertWithShapeMixin
label_desc: Use image node_id 7 for calling the TestConvert obj's underlying member method code with example usage: obj.test_basic_add() and returns: out1,  out2