code: def parenthesize(node):
      return Node(syms.atom, [LParen(), node, RParen()])
  
imports: from itertools import islice
  from .pgen2 import token
  from .pytree import Leaf, Node
  from .pygram import python_symbols
  from .None import patcomp
label_desc: Use image node_id 20 for calling a global function with example usage: parenthesize(node) and returns: Node