code: def setUp(self):
      super().setUp()
      main_root = os.environ["MAIN_ROOT"]
      self.main_root = Path(main_root)
      config_file = self.main_root.joinpath(
          "delta/config/han-cls-keras/han-cls.yml"
      )
      self.config = utils.load_config(config_file)
      solver_name = self.config["solver"]["name"]
      self.solver = registers.solver[solver_name](self.config)
  
file_path: delta/egs/snli/match/v1/utils/replace_custom_op_attr_pbtxt_test.py
imports: import os
  import delta.compat
  from absl import logging
  from pathlib import Path
  from delta import utils
  from delta.layers.ops import py_x_ops
  from delta.utils.register import registers
  from utils.edit_pbtxt import edit_pb_txt
label_desc: Use image node_id 1 for calling the EditPbtxtTest obj's underlying member method code with example usage: obj.setUp() without return types