code: def __init__(self):
      self.conv1 = ConvLayer(8, kernel=3)
      self.conv_block2 = DoubleConvUnit(16, 32)
      self.conv_block3 = nn.Sequential(
          ConvLayer(64, kernel=3), DoubleConvUnit(16, 196)
      )
  
imports: import nnabla
  import nnabla.parametric_functions
  import nnabla.functions
  import numpy
  import pytest
  from helper import create_temp_with_dir
  from nnabla.testing import assert_allclose
label_desc: Use image node_id 1 to create a new TSTSeqInSeqNetNoName object from inherited base classes: nn with example: obj = TSTSeqInSeqNetNoName()