class_docstr: data class for mock seqlabel task.
class_docstr_tok: ["data","class","for","mock","seqlabel","task","."]
code: def __init__(self, project_dir):
      super().__init__(project_dir)
      self.train_file = "train.txt"
      self.dev_file = "dev.txt"
      self.test_file = "test.txt"
      self.data_files = [self.train_file, self.dev_file, self.test_file]
      self.config_files = ["seq_label_mock.yml"]
      self.download_files = []
      self.text_vocab = "text_vocab.txt"
      self.label_vocab = "label_vocab.txt"
  
      # samples with label
      self.samples = [
          "O O O O\ti feel good .",
          "O O B-ORG O O O O O O\tby stumps kent had reached 108 for three .",
      ]
      self.text_vocab_list = [
          "<unk>\t0",
          "</s>\t1",
          "i\t2",
          "feel\t3",
          "good\t4",
          ".\t5",
          "by\t6",
          "stumps\t7",
          "kent\t8",
          "had\t9",
          "reached\t10",
          "108\t11",
          "for\t12",
          "three\t13",
      ]
      self.label_vocab_list = [
          "O\t0",
          "B-PER\t1",
          "I-PER\t2",
          "B-LOC\t3",
          "I-LOC\t4",
          "B-ORG\t5",
          "I-ORG\t6",
          "B-MISC\t7",
          "I-MISC\t8",
      ]
  
file_path: delta/delta/data/datasets/mock_text_seq_label_data.py
imports: import os
  import traceback
  from absl import logging
  from delta.data.datasets.base_dataset import BaseDataSet
  from delta.data.datasets.utils import mock_data
  from delta.utils.register import registers
label_desc: Use image node_id 1 to create a new MockTextSeqLabelData object from inherited base classes: BaseDataSet with example: obj = MockTextSeqLabelData(project_dir)