code: def test_encode_empty():
      enc = tiktoken.get_encoding("r50k_base")
      assert enc.encode("") == []
  
file_path: tiktoken/tests/test_encoding.py
imports: from typing import Callable
  import hypothesis
  import hypothesis.strategies
  import pytest
  import tiktoken
  from .test_helpers import ENCODING_FACTORIES, MAX_EXAMPLES
label_desc: Use image node_id 5 for calling a global function with example usage: test_encode_empty() without return types