class_docstr: jieba op test
docstr: build graph 
docstr_tok: ["build","graph"]
code: def build_op_use_file(self, sentence):
      """build graph"""
  
      words = py_x_ops.jieba_cut(sentence, use_file=True, hmm=True)
      return words
  
file_path: delta/core/ops/kernels/jieba_op_test.py
imports: import os
  import time
  import tempfile
  import delta.compat
  from absl import logging
  from delta.data.utils import read_lines_from_text_file
  from delta.layers.ops import py_x_ops
label_desc: Use image node_id 1 for calling the JiebaOpsTest obj's underlying member method code with example usage: obj.build_op_use_file(sentence) and returns: words