class_docstr: GraphStream is a class for delta automatical optimization
docstr: set save path for final otimized graph by graph stream 
docstr_tok: ["set","save","path","for","final","otimized","graph","by","graph","stream"]
code: def save(self, path=None):
      """set save path for final otimized graph by graph stream"""
      self.__save_path = path if path is not None else "./result.pb"
  
file_path: delta/gcompiler/python/delta_infer/optimizer.py
imports: from __future__ import absolute_import, division, print_function
  import os
  import sys
  from .subgraphs import *
  from .cpp import DeltaGraph, AutoOptimizer, RegisterPattern
label_desc: Use image node_id 5 for calling the GraphStream obj's underlying member method code with example usage: obj.save(path) without return types