code: def simplify_path(path):
      """
      :type path: str
      :rtype: str
      """
      skip = {"..", ".", ""}
      stack = []
      paths = path.split("/")
      for tok in paths:
          if tok == "..":
              if stack:
                  stack.pop()
          elif tok not in skip:
              stack.append(tok)
      return "/" + "/".join(stack)
  
label_desc: Use image node_id 1 for calling a global function with example usage: simplify_path(path) and returns: unknown