code: def gast_to_ast(node):
      return GAstToAst3().visit(node)
  
file_path: catboost/contrib/python/gast/gast/ast3.py
imports: from gast.astn import AstToGAst, GAstToAst
  import gast
  import ast
  import sys
label_desc: Use image node_id 2 for calling a global function with example usage: gast_to_ast(node) and returns: GAstToAst3