code: def _build_sentence_ids(self, src_ids):
      src_shape = L.shape(src_ids)
      src_seqlen = src_shape[1]
      src_batch = src_shape[0]
      slot_seqlen = self.slot_seqlen
  
      zeros = L.zeros([src_batch, slot_seqlen], "int64")
      ones = L.ones([src_batch, src_seqlen - slot_seqlen], "int64")
      sentence_ids = L.concat([zeros, ones], 1)
      sentence_ids.stop_gradient = True
      return sentence_ids
  
imports: import os
  import json
  import numpy
  import pgl
  import paddle.fluid
  import paddle.fluid.layers
  from ernie import ErnieModel
  from pgl.utils.logger import log
label_desc: Use image node_id 5 for calling the ERNIESageV3Encoder obj's underlying member method code with example usage: obj._build_sentence_ids(src_ids) and returns: sentence_ids