code: def modifier(x):
      callback = nnp_graph.NnpNetworkPass(1)
      callback.remove_and_rewire("Affine")
      callback.set_variable("Affine_in", x)
      return callback
  
imports: import pytest
  import numpy
  import nnabla
  import nnabla.functions
  import nnabla.parametric_functions
  from nnabla.testing import assert_allclose
  from helper import get_saved_test_model, forward_variable_and_check_equal, forward_variable, assert_topology, dump_network_topology
  import legacy_nnp_graph
  from nnabla.utils import nnp_graph
label_desc: Use image node_id 3 for calling the SimpleModuleTest obj's underlying member method code with example usage: obj.modifier(x) and returns: callback