code: def _cauchy_inversed(self, ast_to_transform):
      return utils.add(
          ast.NumVal(0.5),
          utils.div(
              ast.AtanExpr(ast_to_transform), ast.NumVal(math.pi)
          ),
      )
  
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 13 for calling the GLMMixin obj's underlying member method code with example usage: obj._cauchy_inversed(ast_to_transform) and returns: utils