code: def setUp(self):
      bsize = 2
      self.x = [torch.randn(bsize, 10), torch.randn(bsize, 20)]
      self.input_dims = [self.x[0].shape[-1], self.x[1].shape[-1]]
      self.output_dims = 2
  
file_path: mmf/tests/modules/test_fusions.py
imports: import unittest
  import mmf.modules.fusions
  import torch
label_desc: Use image node_id 1 for calling the TestModuleFusions obj's underlying member method code with example usage: obj.setUp() without return types