code: def find_params(node):
      if node.type == syms.vfpdef:
          return find_params(node.children[1])
      elif node.type == token.NAME:
          return node.value
      return [
          find_params(c) for c in node.children if c.type != token.COMMA
      ]
  
file_path: catboost/contrib/tools/python/src/Lib/lib2to3/fixes/fix_tuple_params.py
imports: from ..None import pytree
  from ..pgen2 import token
  from ..None import fixer_base
  from ..fixer_util import Assign, Name, Newline, Number, Subscript, syms
label_desc: Use image node_id 3 for calling a global function with example usage: find_params(node) and returns: unknown, find_params, node