code: def test_tokenization_base_easy_symbols(self):
      symbols = "Hello World!"
      original_tokenizer_encodings = [35389, 6672, 49, 2]
      self.assertListEqual(
          original_tokenizer_encodings,
          self.big_tokenizer.encode(symbols),
      )
  
file_path: H2O/h2o_flexgen/benchmark/third_party/transformers/tests/models/xlm_prophetnet/test_tokenization_xlm_prophetnet.py
imports: import unittest
  from transformers.models.xlm_prophetnet.tokenization_xlm_prophetnet import SPIECE_UNDERLINE, XLMProphetNetTokenizer
  from transformers.testing_utils import get_tests_dir, require_sentencepiece, slow
  from transformers.utils import cached_property
  from ...test_tokenization_common import TokenizerTesterMixin
label_desc: Use image node_id 7 for calling the XLMProphetNetTokenizationTest obj's underlying member method code with example usage: obj.test_tokenization_base_easy_symbols() without return types