code: def _final_transform(self, ast_to_transform):
      return ast_to_transform
  
imports: import math
  import numpy
  from m2cgen import ast
  from m2cgen.assemblers import utils
  from m2cgen.assemblers.base import ModelAssembler
label_desc: Use image node_id 3 for calling the BaseLinearModelAssembler obj's underlying member method code with example usage: obj._final_transform(ast_to_transform) and returns: ast_to_transform