code: def _looks_like_typing_subscript(node):
      
      if isinstance(node, nodes.Name):
          return node.name in TYPING_MEMBERS
      elif isinstance(node, nodes.Attribute):
          return node.attrname in TYPING_MEMBERS
      elif isinstance(node, nodes.Subscript):
          return _looks_like_typing_subscript(node.value)
      return False
docs: Try to figure out if a Subscript node *might* be a typing-related subscript