code: def _find(name, node):
      nodes = [node]
      while nodes:
          node = nodes.pop()
          if node.type > 256 and node.type not in _block_syms:
              nodes.extend(node.children)
          elif node.type == token.NAME and node.value == name:
              return node
      return None
  
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 31 for calling a global function with example usage: _find(name, node) and returns: None, node