code: def test_get_num_bytes():
      tokens = [
          Token(text, 0, {})
          for text in [
              "bytes:\\x99",
              "Hello",
              " world",
              "bytes:\\xe2\\x80",
          ]
      ]
      assert get_num_bytes(tokens) == 14
  
imports: from helm.common.request import Token
  from .basic_metrics import get_num_bytes, convert_tokens_to_text
label_desc: Use image node_id 1 for calling a global function with example usage: test_get_num_bytes() without return types