code: def test_getidxstrictbatch(self):
      index_store = IndexStore()
      self.assertEqual(index_store.getidx("a"), 0)
      self.assertEqual(index_store.getidx("b"), 1)
      self.assertEqual(index_store.getidx("c"), 2)
      self.assertEqual(index_store.getidx("d"), 3)
      self.assertEqual(index_store.getidx("e"), 4)
      self.assertEqual(index_store.getidx("f"), 5)
      self.assertEqual(
          index_store.getidxstrictbatch(["b", "f", "b", "a"]),
          [1, 5, 1, 0],
      )
  
file_path: scattertext/scattertext/test/test_indexStore.py
imports: from unittest import TestCase
  from scattertext.indexstore.IndexStore import IndexStore
label_desc: Use image node_id 4 for calling the TestIndexStore obj's underlying member method code with example usage: obj.test_getidxstrictbatch() without return types