code: def test_n_sequences(self, encodings):
      single, pair = encodings
      assert single.n_sequences == 1
      assert pair.n_sequences == 2
  
file_path: hf-tokenizers/bindings/python/tests/bindings/test_encoding.py
imports: import pytest
  from tokenizers import BertWordPieceTokenizer
  from ..utils import bert_files, data_dir
label_desc: Use image node_id 3 for calling the TestEncoding obj's underlying member method code with example usage: obj.test_n_sequences(encodings) without return types