class_docstr: A CNN model which adds spp layer so that we can input multi-size tensor
code: def setUp(self):
      self.input = torch.rand((2, 512, 13, 13))
  
imports: import unittest
  import torch
  from towhee.models.layers.aspp import ASPP
label_desc: Use image node_id 1 for calling the TestOperator obj's underlying member method code with example usage: obj.setUp() without return types