code: def test_dictionary_get_item_for_index():
      dictionary: Dictionary = Dictionary(add_unk=False)
  
      dictionary.add_item("class_1")
      dictionary.add_item("class_2")
      dictionary.add_item("class_3")
  
      item = dictionary.get_item_for_index(0)
  
      assert item == "class_1"
  
imports: import os
  import pytest
  import flair
  from flair.data import Corpus, Dictionary, Label, Sentence
  from flair.datasets import ColumnCorpus, FlairDatapointDataset, SentenceDataset
label_desc: Use image node_id 4 for calling a global function with example usage: test_dictionary_get_item_for_index() without return types